Home / 88,931.20-133,364.40-29,768.80

Finding the Fourth Proportional to 88,931.20, 133,364.40 and 29,768.80

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Solution

The fourth proportional to 88,931.20, 133,364.40 and 29,768.80 is: 44,642.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,931.20 : 133,364.40 = 29,768.80 : x
  2. Step 2: Convert to fraction form
    88,931.20/133,364.40 = 29,768.80/x
  3. Step 3: Cross multiply
    88,931.20x = 133,364.40 × 29,768.80
  4. Step 4: Simplify right side
    88,931.20x = 3,970,098,150.72
  5. Step 5: Solve for x
    x = 3,970,098,150.72/88,931.20
  6. Step 6: Final answer
    x = 44,642.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.