Home / 70,000.18-96,596.76-39,781.51

Finding the Fourth Proportional to 70,000.18, 96,596.76 and 39,781.51

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Solution

The fourth proportional to 70,000.18, 96,596.76 and 39,781.51 is: 54,896.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,000.18 : 96,596.76 = 39,781.51 : x
  2. Step 2: Convert to fraction form
    70,000.18/96,596.76 = 39,781.51/x
  3. Step 3: Cross multiply
    70,000.18x = 96,596.76 × 39,781.51
  4. Step 4: Simplify right side
    70,000.18x = 3,842,764,973.91
  5. Step 5: Solve for x
    x = 3,842,764,973.91/70,000.18
  6. Step 6: Final answer
    x = 54,896.50

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.