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Finding the Fourth Proportional to 70,126.52, 96,782.90 and 39,500.62

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Solution

The fourth proportional to 70,126.52, 96,782.90 and 39,500.62 is: 54,515.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,126.52 : 96,782.90 = 39,500.62 : x
  2. Step 2: Convert to fraction form
    70,126.52/96,782.90 = 39,500.62/x
  3. Step 3: Cross multiply
    70,126.52x = 96,782.90 × 39,500.62
  4. Step 4: Simplify right side
    70,126.52x = 3,822,984,357.89
  5. Step 5: Solve for x
    x = 3,822,984,357.89/70,126.52
  6. Step 6: Final answer
    x = 54,515.53

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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.