Home / 88,139.97-121,632.66-47,853.39

Finding the Fourth Proportional to 88,139.97, 121,632.66 and 47,853.39

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Solution

The fourth proportional to 88,139.97, 121,632.66 and 47,853.39 is: 66,037.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,139.97 : 121,632.66 = 47,853.39 : x
  2. Step 2: Convert to fraction form
    88,139.97/121,632.66 = 47,853.39/x
  3. Step 3: Cross multiply
    88,139.97x = 121,632.66 × 47,853.39
  4. Step 4: Simplify right side
    88,139.97x = 5,820,535,115.72
  5. Step 5: Solve for x
    x = 5,820,535,115.72/88,139.97
  6. Step 6: Final answer
    x = 66,037.41

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1.5x scale

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.