Home / 49,705.18-74,557.80-12,265.90

Finding the Fourth Proportional to 49,705.18, 74,557.80 and 12,265.90

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Solution

The fourth proportional to 49,705.18, 74,557.80 and 12,265.90 is: 18,398.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,705.18 : 74,557.80 = 12,265.90 : x
  2. Step 2: Convert to fraction form
    49,705.18/74,557.80 = 12,265.90/x
  3. Step 3: Cross multiply
    49,705.18x = 74,557.80 × 12,265.90
  4. Step 4: Simplify right side
    49,705.18x = 914,518,332.63
  5. Step 5: Solve for x
    x = 914,518,332.63/49,705.18
  6. Step 6: Final answer
    x = 18,398.85

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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.