Home / 65,715.28-90,687.17-35,500.59

Finding the Fourth Proportional to 65,715.28, 90,687.17 and 35,500.59

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Solution

The fourth proportional to 65,715.28, 90,687.17 and 35,500.59 is: 48,990.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,715.28 : 90,687.17 = 35,500.59 : x
  2. Step 2: Convert to fraction form
    65,715.28/90,687.17 = 35,500.59/x
  3. Step 3: Cross multiply
    65,715.28x = 90,687.17 × 35,500.59
  4. Step 4: Simplify right side
    65,715.28x = 3,219,448,129.18
  5. Step 5: Solve for x
    x = 3,219,448,129.18/65,715.28
  6. Step 6: Final answer
    x = 48,990.86

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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.