Home / 68,520.86-102,767.15-26,386.47

Finding the Fourth Proportional to 68,520.86, 102,767.15 and 26,386.47

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Solution

The fourth proportional to 68,520.86, 102,767.15 and 26,386.47 is: 39,574.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,520.86 : 102,767.15 = 26,386.47 : x
  2. Step 2: Convert to fraction form
    68,520.86/102,767.15 = 26,386.47/x
  3. Step 3: Cross multiply
    68,520.86x = 102,767.15 × 26,386.47
  4. Step 4: Simplify right side
    68,520.86x = 2,711,662,188.53
  5. Step 5: Solve for x
    x = 2,711,662,188.53/68,520.86
  6. Step 6: Final answer
    x = 39,574.26

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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.