Home / 52,637.12-72,605.28-31,400

Finding the Fourth Proportional to 52,637.12, 72,605.28 and 31,400

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Solution

The fourth proportional to 52,637.12, 72,605.28 and 31,400 is: 43,311.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,637.12 : 72,605.28 = 31,400 : x
  2. Step 2: Convert to fraction form
    52,637.12/72,605.28 = 31,400/x
  3. Step 3: Cross multiply
    52,637.12x = 72,605.28 × 31,400
  4. Step 4: Simplify right side
    52,637.12x = 2,279,805,792
  5. Step 5: Solve for x
    x = 2,279,805,792/52,637.12
  6. Step 6: Final answer
    x = 43,311.75

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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.