Home / 87,876.95-121,268.69-47,590.39

Finding the Fourth Proportional to 87,876.95, 121,268.69 and 47,590.39

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Solution

The fourth proportional to 87,876.95, 121,268.69 and 47,590.39 is: 65,673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,876.95 : 121,268.69 = 47,590.39 : x
  2. Step 2: Convert to fraction form
    87,876.95/121,268.69 = 47,590.39/x
  3. Step 3: Cross multiply
    87,876.95x = 121,268.69 × 47,590.39
  4. Step 4: Simplify right side
    87,876.95x = 5,771,223,764.52
  5. Step 5: Solve for x
    x = 5,771,223,764.52/87,876.95
  6. Step 6: Final answer
    x = 65,673.92

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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.