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Finding the Fourth Proportional to 85,593.69, 128,320.98 and 35,710.97

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Solution

The fourth proportional to 85,593.69, 128,320.98 and 35,710.97 is: 53,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,593.69 : 128,320.98 = 35,710.97 : x
  2. Step 2: Convert to fraction form
    85,593.69/128,320.98 = 35,710.97/x
  3. Step 3: Cross multiply
    85,593.69x = 128,320.98 × 35,710.97
  4. Step 4: Simplify right side
    85,593.69x = 4,582,466,025.55
  5. Step 5: Solve for x
    x = 4,582,466,025.55/85,593.69
  6. Step 6: Final answer
    x = 53,537.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.