Home / 52,400.13-72,330.40-31,178.94

Finding the Fourth Proportional to 52,400.13, 72,330.40 and 31,178.94

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Solution

The fourth proportional to 52,400.13, 72,330.40 and 31,178.94 is: 43,037.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,400.13 : 72,330.40 = 31,178.94 : x
  2. Step 2: Convert to fraction form
    52,400.13/72,330.40 = 31,178.94/x
  3. Step 3: Cross multiply
    52,400.13x = 72,330.40 × 31,178.94
  4. Step 4: Simplify right side
    52,400.13x = 2,255,185,201.78
  5. Step 5: Solve for x
    x = 2,255,185,201.78/52,400.13
  6. Step 6: Final answer
    x = 43,037.78

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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.