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Finding the Fourth Proportional to 58,920, 88,358.40 and 19,465.92

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Solution

The fourth proportional to 58,920, 88,358.40 and 19,465.92 is: 29,191.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,920 : 88,358.40 = 19,465.92 : x
  2. Step 2: Convert to fraction form
    58,920/88,358.40 = 19,465.92/x
  3. Step 3: Cross multiply
    58,920x = 88,358.40 × 19,465.92
  4. Step 4: Simplify right side
    58,920x = 1,719,977,545.73
  5. Step 5: Solve for x
    x = 1,719,977,545.73/58,920
  6. Step 6: Final answer
    x = 29,191.74

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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.