Home / 51,688.87-71,332.36-29,031.86

Finding the Fourth Proportional to 51,688.87, 71,332.36 and 29,031.86

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Solution

The fourth proportional to 51,688.87, 71,332.36 and 29,031.86 is: 40,064.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,688.87 : 71,332.36 = 29,031.86 : x
  2. Step 2: Convert to fraction form
    51,688.87/71,332.36 = 29,031.86/x
  3. Step 3: Cross multiply
    51,688.87x = 71,332.36 × 29,031.86
  4. Step 4: Simplify right side
    51,688.87x = 2,070,910,659.75
  5. Step 5: Solve for x
    x = 2,070,910,659.75/51,688.87
  6. Step 6: Final answer
    x = 40,064.93

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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.