Home / 87,800.71-121,164.05-47,513.58

Finding the Fourth Proportional to 87,800.71, 121,164.05 and 47,513.58

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Solution

The fourth proportional to 87,800.71, 121,164.05 and 47,513.58 is: 65,568.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,800.71 : 121,164.05 = 47,513.58 : x
  2. Step 2: Convert to fraction form
    87,800.71/121,164.05 = 47,513.58/x
  3. Step 3: Cross multiply
    87,800.71x = 121,164.05 × 47,513.58
  4. Step 4: Simplify right side
    87,800.71x = 5,756,937,782.80
  5. Step 5: Solve for x
    x = 5,756,937,782.80/87,800.71
  6. Step 6: Final answer
    x = 65,568.24

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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.