Home / 82,446.10-123,669.15-77,853.40

Finding the Fourth Proportional to 82,446.10, 123,669.15 and 77,853.40

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Solution

The fourth proportional to 82,446.10, 123,669.15 and 77,853.40 is: 116,780.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,446.10 : 123,669.15 = 77,853.40 : x
  2. Step 2: Convert to fraction form
    82,446.10/123,669.15 = 77,853.40/x
  3. Step 3: Cross multiply
    82,446.10x = 123,669.15 × 77,853.40
  4. Step 4: Simplify right side
    82,446.10x = 9,628,063,802.61
  5. Step 5: Solve for x
    x = 9,628,063,802.61/82,446.10
  6. Step 6: Final answer
    x = 116,780.10

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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.