Home / 57,174.30-78,900.57-31,332.74

Finding the Fourth Proportional to 57,174.30, 78,900.57 and 31,332.74

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Solution

The fourth proportional to 57,174.30, 78,900.57 and 31,332.74 is: 43,239.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,174.30 : 78,900.57 = 31,332.74 : x
  2. Step 2: Convert to fraction form
    57,174.30/78,900.57 = 31,332.74/x
  3. Step 3: Cross multiply
    57,174.30x = 78,900.57 × 31,332.74
  4. Step 4: Simplify right side
    57,174.30x = 2,472,170,651.16
  5. Step 5: Solve for x
    x = 2,472,170,651.16/57,174.30
  6. Step 6: Final answer
    x = 43,239.19

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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.