Home / 40,665.80-61,001.54-12,582.15

Finding the Fourth Proportional to 40,665.80, 61,001.54 and 12,582.15

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Solution

The fourth proportional to 40,665.80, 61,001.54 and 12,582.15 is: 18,874.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,665.80 : 61,001.54 = 12,582.15 : x
  2. Step 2: Convert to fraction form
    40,665.80/61,001.54 = 12,582.15/x
  3. Step 3: Cross multiply
    40,665.80x = 61,001.54 × 12,582.15
  4. Step 4: Simplify right side
    40,665.80x = 767,530,557.97
  5. Step 5: Solve for x
    x = 767,530,557.97/40,665.80
  6. Step 6: Final answer
    x = 18,874.11

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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.