Home / 77,962.30-107,585.42-43,971.66

Finding the Fourth Proportional to 77,962.30, 107,585.42 and 43,971.66

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Solution

The fourth proportional to 77,962.30, 107,585.42 and 43,971.66 is: 60,679.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,962.30 : 107,585.42 = 43,971.66 : x
  2. Step 2: Convert to fraction form
    77,962.30/107,585.42 = 43,971.66/x
  3. Step 3: Cross multiply
    77,962.30x = 107,585.42 × 43,971.66
  4. Step 4: Simplify right side
    77,962.30x = 4,730,709,289.34
  5. Step 5: Solve for x
    x = 4,730,709,289.34/77,962.30
  6. Step 6: Final answer
    x = 60,679.45

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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.