Home / 51,478.38-71,042.94-31,332.06

Finding the Fourth Proportional to 51,478.38, 71,042.94 and 31,332.06

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Solution

The fourth proportional to 51,478.38, 71,042.94 and 31,332.06 is: 43,239.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,478.38 : 71,042.94 = 31,332.06 : x
  2. Step 2: Convert to fraction form
    51,478.38/71,042.94 = 31,332.06/x
  3. Step 3: Cross multiply
    51,478.38x = 71,042.94 × 31,332.06
  4. Step 4: Simplify right side
    51,478.38x = 2,225,921,658.66
  5. Step 5: Solve for x
    x = 2,225,921,658.66/51,478.38
  6. Step 6: Final answer
    x = 43,239.93

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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.