Home / 88,205.68-121,721.70-47,919.52

Finding the Fourth Proportional to 88,205.68, 121,721.70 and 47,919.52

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Solution

The fourth proportional to 88,205.68, 121,721.70 and 47,919.52 is: 66,127.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,205.68 : 121,721.70 = 47,919.52 : x
  2. Step 2: Convert to fraction form
    88,205.68/121,721.70 = 47,919.52/x
  3. Step 3: Cross multiply
    88,205.68x = 121,721.70 × 47,919.52
  4. Step 4: Simplify right side
    88,205.68x = 5,832,845,437.58
  5. Step 5: Solve for x
    x = 5,832,845,437.58/88,205.68
  6. Step 6: Final answer
    x = 66,127.78

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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.