Home / 87,934.96-121,350.05-47,649.81

Finding the Fourth Proportional to 87,934.96, 121,350.05 and 47,649.81

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Solution

The fourth proportional to 87,934.96, 121,350.05 and 47,649.81 is: 65,756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,934.96 : 121,350.05 = 47,649.81 : x
  2. Step 2: Convert to fraction form
    87,934.96/121,350.05 = 47,649.81/x
  3. Step 3: Cross multiply
    87,934.96x = 121,350.05 × 47,649.81
  4. Step 4: Simplify right side
    87,934.96x = 5,782,307,221.49
  5. Step 5: Solve for x
    x = 5,782,307,221.49/87,934.96
  6. Step 6: Final answer
    x = 65,756.64

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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.