Home / 74,388.04-102,657.86-40,854.04

Finding the Fourth Proportional to 74,388.04, 102,657.86 and 40,854.04

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Solution

The fourth proportional to 74,388.04, 102,657.86 and 40,854.04 is: 56,379.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,388.04 : 102,657.86 = 40,854.04 : x
  2. Step 2: Convert to fraction form
    74,388.04/102,657.86 = 40,854.04/x
  3. Step 3: Cross multiply
    74,388.04x = 102,657.86 × 40,854.04
  4. Step 4: Simplify right side
    74,388.04x = 4,193,988,318.75
  5. Step 5: Solve for x
    x = 4,193,988,318.75/74,388.04
  6. Step 6: Final answer
    x = 56,379.87

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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.