Home / 87,472.96-120,583.62-61,899.88

Finding the Fourth Proportional to 87,472.96, 120,583.62 and 61,899.88

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Solution

The fourth proportional to 87,472.96, 120,583.62 and 61,899.88 is: 85,330.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,472.96 : 120,583.62 = 61,899.88 : x
  2. Step 2: Convert to fraction form
    87,472.96/120,583.62 = 61,899.88/x
  3. Step 3: Cross multiply
    87,472.96x = 120,583.62 × 61,899.88
  4. Step 4: Simplify right side
    87,472.96x = 7,464,111,607.97
  5. Step 5: Solve for x
    x = 7,464,111,607.97/87,472.96
  6. Step 6: Final answer
    x = 85,330.50

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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.