Home / 52,711.87-72,735.20-31,486.63

Finding the Fourth Proportional to 52,711.87, 72,735.20 and 31,486.63

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Solution

The fourth proportional to 52,711.87, 72,735.20 and 31,486.63 is: 43,447.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,711.87 : 72,735.20 = 31,486.63 : x
  2. Step 2: Convert to fraction form
    52,711.87/72,735.20 = 31,486.63/x
  3. Step 3: Cross multiply
    52,711.87x = 72,735.20 × 31,486.63
  4. Step 4: Simplify right side
    52,711.87x = 2,290,185,966.70
  5. Step 5: Solve for x
    x = 2,290,185,966.70/52,711.87
  6. Step 6: Final answer
    x = 43,447.26

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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.