Home / 72,502.24-108,751.98-19,909.76

Finding the Fourth Proportional to 72,502.24, 108,751.98 and 19,909.76

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Solution

The fourth proportional to 72,502.24, 108,751.98 and 19,909.76 is: 29,864.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,502.24 : 108,751.98 = 19,909.76 : x
  2. Step 2: Convert to fraction form
    72,502.24/108,751.98 = 19,909.76/x
  3. Step 3: Cross multiply
    72,502.24x = 108,751.98 × 19,909.76
  4. Step 4: Simplify right side
    72,502.24x = 2,165,225,821.32
  5. Step 5: Solve for x
    x = 2,165,225,821.32/72,502.24
  6. Step 6: Final answer
    x = 29,864.26

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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.