Home / 52,356.60-72,248.40-31,131.90

Finding the Fourth Proportional to 52,356.60, 72,248.40 and 31,131.90

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Solution

The fourth proportional to 52,356.60, 72,248.40 and 31,131.90 is: 42,959.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,356.60 : 72,248.40 = 31,131.90 : x
  2. Step 2: Convert to fraction form
    52,356.60/72,248.40 = 31,131.90/x
  3. Step 3: Cross multiply
    52,356.60x = 72,248.40 × 31,131.90
  4. Step 4: Simplify right side
    52,356.60x = 2,249,229,963.96
  5. Step 5: Solve for x
    x = 2,249,229,963.96/52,356.60
  6. Step 6: Final answer
    x = 42,959.82

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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.