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Finding the Fourth Proportional to 55,677.08, 76,731.32 and 39,545.08

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Solution

The fourth proportional to 55,677.08, 76,731.32 and 39,545.08 is: 54,499.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,677.08 : 76,731.32 = 39,545.08 : x
  2. Step 2: Convert to fraction form
    55,677.08/76,731.32 = 39,545.08/x
  3. Step 3: Cross multiply
    55,677.08x = 76,731.32 × 39,545.08
  4. Step 4: Simplify right side
    55,677.08x = 3,034,346,187.91
  5. Step 5: Solve for x
    x = 3,034,346,187.91/55,677.08
  6. Step 6: Final answer
    x = 54,499.02

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1.5x scale

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.