Home / 90,008.46-135,037.23-39,398.28

Finding the Fourth Proportional to 90,008.46, 135,037.23 and 39,398.28

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Solution

The fourth proportional to 90,008.46, 135,037.23 and 39,398.28 is: 59,108.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,008.46 : 135,037.23 = 39,398.28 : x
  2. Step 2: Convert to fraction form
    90,008.46/135,037.23 = 39,398.28/x
  3. Step 3: Cross multiply
    90,008.46x = 135,037.23 × 39,398.28
  4. Step 4: Simplify right side
    90,008.46x = 5,320,234,597.96
  5. Step 5: Solve for x
    x = 5,320,234,597.96/90,008.46
  6. Step 6: Final answer
    x = 59,108.16

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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.