Home / 88,270.68-121,815.88-47,987.16

Finding the Fourth Proportional to 88,270.68, 121,815.88 and 47,987.16

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Solution

The fourth proportional to 88,270.68, 121,815.88 and 47,987.16 is: 66,223.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,270.68 : 121,815.88 = 47,987.16 : x
  2. Step 2: Convert to fraction form
    88,270.68/121,815.88 = 47,987.16/x
  3. Step 3: Cross multiply
    88,270.68x = 121,815.88 × 47,987.16
  4. Step 4: Simplify right side
    88,270.68x = 5,845,598,124.10
  5. Step 5: Solve for x
    x = 5,845,598,124.10/88,270.68
  6. Step 6: Final answer
    x = 66,223.55

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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.