Home / 87,913.15-121,320.05-47,627.93

Finding the Fourth Proportional to 87,913.15, 121,320.05 and 47,627.93

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Solution

The fourth proportional to 87,913.15, 121,320.05 and 47,627.93 is: 65,726.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,913.15 : 121,320.05 = 47,627.93 : x
  2. Step 2: Convert to fraction form
    87,913.15/121,320.05 = 47,627.93/x
  3. Step 3: Cross multiply
    87,913.15x = 121,320.05 × 47,627.93
  4. Step 4: Simplify right side
    87,913.15x = 5,778,222,914.16
  5. Step 5: Solve for x
    x = 5,778,222,914.16/87,913.15
  6. Step 6: Final answer
    x = 65,726.49

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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.