Home / 52,120.64-71,926.47-28,247.31

Finding the Fourth Proportional to 52,120.64, 71,926.47 and 28,247.31

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Solution

The fourth proportional to 52,120.64, 71,926.47 and 28,247.31 is: 38,981.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,120.64 : 71,926.47 = 28,247.31 : x
  2. Step 2: Convert to fraction form
    52,120.64/71,926.47 = 28,247.31/x
  3. Step 3: Cross multiply
    52,120.64x = 71,926.47 × 28,247.31
  4. Step 4: Simplify right side
    52,120.64x = 2,031,729,295.30
  5. Step 5: Solve for x
    x = 2,031,729,295.30/52,120.64
  6. Step 6: Final answer
    x = 38,981.28

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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.