Home / 52,070.38-78,086.73-18,781.50

Finding the Fourth Proportional to 52,070.38, 78,086.73 and 18,781.50

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Solution

The fourth proportional to 52,070.38, 78,086.73 and 18,781.50 is: 28,165.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,070.38 : 78,086.73 = 18,781.50 : x
  2. Step 2: Convert to fraction form
    52,070.38/78,086.73 = 18,781.50/x
  3. Step 3: Cross multiply
    52,070.38x = 78,086.73 × 18,781.50
  4. Step 4: Simplify right side
    52,070.38x = 1,466,585,919.50
  5. Step 5: Solve for x
    x = 1,466,585,919.50/52,070.38
  6. Step 6: Final answer
    x = 28,165.45

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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.