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Finding the Fourth Proportional to 88,397.87, 121,987.35 and 48,112.52

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Solution

The fourth proportional to 88,397.87, 121,987.35 and 48,112.52 is: 66,394.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,397.87 : 121,987.35 = 48,112.52 : x
  2. Step 2: Convert to fraction form
    88,397.87/121,987.35 = 48,112.52/x
  3. Step 3: Cross multiply
    88,397.87x = 121,987.35 × 48,112.52
  4. Step 4: Simplify right side
    88,397.87x = 5,869,118,206.69
  5. Step 5: Solve for x
    x = 5,869,118,206.69/88,397.87
  6. Step 6: Final answer
    x = 66,394.34

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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.