Home / 57,932.49-86,931.60-31,278.12

Finding the Fourth Proportional to 57,932.49, 86,931.60 and 31,278.12

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Solution

The fourth proportional to 57,932.49, 86,931.60 and 31,278.12 is: 46,934.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,932.49 : 86,931.60 = 31,278.12 : x
  2. Step 2: Convert to fraction form
    57,932.49/86,931.60 = 31,278.12/x
  3. Step 3: Cross multiply
    57,932.49x = 86,931.60 × 31,278.12
  4. Step 4: Simplify right side
    57,932.49x = 2,719,057,133.88
  5. Step 5: Solve for x
    x = 2,719,057,133.88/57,932.49
  6. Step 6: Final answer
    x = 46,934.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.