Home / 88,115.31-121,599.90-47,829.69

Finding the Fourth Proportional to 88,115.31, 121,599.90 and 47,829.69

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Solution

The fourth proportional to 88,115.31, 121,599.90 and 47,829.69 is: 66,005.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,115.31 : 121,599.90 = 47,829.69 : x
  2. Step 2: Convert to fraction form
    88,115.31/121,599.90 = 47,829.69/x
  3. Step 3: Cross multiply
    88,115.31x = 121,599.90 × 47,829.69
  4. Step 4: Simplify right side
    88,115.31x = 5,816,085,521.03
  5. Step 5: Solve for x
    x = 5,816,085,521.03/88,115.31
  6. Step 6: Final answer
    x = 66,005.39

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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.