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Finding the Fourth Proportional to 53,287.60, 79,931.39 and 15,847.52

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Solution

The fourth proportional to 53,287.60, 79,931.39 and 15,847.52 is: 23,771.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,287.60 : 79,931.39 = 15,847.52 : x
  2. Step 2: Convert to fraction form
    53,287.60/79,931.39 = 15,847.52/x
  3. Step 3: Cross multiply
    53,287.60x = 79,931.39 × 15,847.52
  4. Step 4: Simplify right side
    53,287.60x = 1,266,714,301.65
  5. Step 5: Solve for x
    x = 1,266,714,301.65/53,287.60
  6. Step 6: Final answer
    x = 23,771.28

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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.