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Finding the Fourth Proportional to 63,291.40, 87,344.40 and 37,808.80

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Solution

The fourth proportional to 63,291.40, 87,344.40 and 37,808.80 is: 52,177.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,291.40 : 87,344.40 = 37,808.80 : x
  2. Step 2: Convert to fraction form
    63,291.40/87,344.40 = 37,808.80/x
  3. Step 3: Cross multiply
    63,291.40x = 87,344.40 × 37,808.80
  4. Step 4: Simplify right side
    63,291.40x = 3,302,386,950.72
  5. Step 5: Solve for x
    x = 3,302,386,950.72/63,291.40
  6. Step 6: Final answer
    x = 52,177.50

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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.