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Finding the Fourth Proportional to 53,132.40, 79,747.80 and 26,855.52

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Solution

The fourth proportional to 53,132.40, 79,747.80 and 26,855.52 is: 40,308.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,132.40 : 79,747.80 = 26,855.52 : x
  2. Step 2: Convert to fraction form
    53,132.40/79,747.80 = 26,855.52/x
  3. Step 3: Cross multiply
    53,132.40x = 79,747.80 × 26,855.52
  4. Step 4: Simplify right side
    53,132.40x = 2,141,668,637.86
  5. Step 5: Solve for x
    x = 2,141,668,637.86/53,132.40
  6. Step 6: Final answer
    x = 40,308.15

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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.