Home / 52,399.97-72,330.18-31,178.78

Finding the Fourth Proportional to 52,399.97, 72,330.18 and 31,178.78

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Solution

The fourth proportional to 52,399.97, 72,330.18 and 31,178.78 is: 43,037.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,399.97 : 72,330.18 = 31,178.78 : x
  2. Step 2: Convert to fraction form
    52,399.97/72,330.18 = 31,178.78/x
  3. Step 3: Cross multiply
    52,399.97x = 72,330.18 × 31,178.78
  4. Step 4: Simplify right side
    52,399.97x = 2,255,166,737.63
  5. Step 5: Solve for x
    x = 2,255,166,737.63/52,399.97
  6. Step 6: Final answer
    x = 43,037.56

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1.5x scale

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.