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Finding the Fourth Proportional to 63,326.50, 87,402.30 and 40,693.78

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Solution

The fourth proportional to 63,326.50, 87,402.30 and 40,693.78 is: 56,164.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,326.50 : 87,402.30 = 40,693.78 : x
  2. Step 2: Convert to fraction form
    63,326.50/87,402.30 = 40,693.78/x
  3. Step 3: Cross multiply
    63,326.50x = 87,402.30 × 40,693.78
  4. Step 4: Simplify right side
    63,326.50x = 3,556,729,967.69
  5. Step 5: Solve for x
    x = 3,556,729,967.69/63,326.50
  6. Step 6: Final answer
    x = 56,164.95

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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.