Home / 52,142.48-78,166.94-18,854.72

Finding the Fourth Proportional to 52,142.48, 78,166.94 and 18,854.72

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Solution

The fourth proportional to 52,142.48, 78,166.94 and 18,854.72 is: 28,265.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,142.48 : 78,166.94 = 18,854.72 : x
  2. Step 2: Convert to fraction form
    52,142.48/78,166.94 = 18,854.72/x
  3. Step 3: Cross multiply
    52,142.48x = 78,166.94 × 18,854.72
  4. Step 4: Simplify right side
    52,142.48x = 1,473,815,281.85
  5. Step 5: Solve for x
    x = 1,473,815,281.85/52,142.48
  6. Step 6: Final answer
    x = 28,265.16

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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.