Home / 51,989.19-71,739.70-38,384.47

Finding the Fourth Proportional to 51,989.19, 71,739.70 and 38,384.47

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Solution

The fourth proportional to 51,989.19, 71,739.70 and 38,384.47 is: 52,966.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,989.19 : 71,739.70 = 38,384.47 : x
  2. Step 2: Convert to fraction form
    51,989.19/71,739.70 = 38,384.47/x
  3. Step 3: Cross multiply
    51,989.19x = 71,739.70 × 38,384.47
  4. Step 4: Simplify right side
    51,989.19x = 2,753,690,356.17
  5. Step 5: Solve for x
    x = 2,753,690,356.17/51,989.19
  6. Step 6: Final answer
    x = 52,966.59

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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.