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Finding the Fourth Proportional to 63,130.38, 87,017.66 and 54,933

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Solution

The fourth proportional to 63,130.38, 87,017.66 and 54,933 is: 75,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,130.38 : 87,017.66 = 54,933 : x
  2. Step 2: Convert to fraction form
    63,130.38/87,017.66 = 54,933/x
  3. Step 3: Cross multiply
    63,130.38x = 87,017.66 × 54,933
  4. Step 4: Simplify right side
    63,130.38x = 4,780,140,842.12
  5. Step 5: Solve for x
    x = 4,780,140,842.12/63,130.38
  6. Step 6: Final answer
    x = 75,718.55

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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.