Home / 72,110.48-99,514.48-39,847.18

Finding the Fourth Proportional to 72,110.48, 99,514.48 and 39,847.18

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Solution

The fourth proportional to 72,110.48, 99,514.48 and 39,847.18 is: 54,990.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,110.48 : 99,514.48 = 39,847.18 : x
  2. Step 2: Convert to fraction form
    72,110.48/99,514.48 = 39,847.18/x
  3. Step 3: Cross multiply
    72,110.48x = 99,514.48 × 39,847.18
  4. Step 4: Simplify right side
    72,110.48x = 3,965,371,397.17
  5. Step 5: Solve for x
    x = 3,965,371,397.17/72,110.48
  6. Step 6: Final answer
    x = 54,990.22

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Double scale
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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.