Home / 72,925.20-109,144.80-52,877.70

Finding the Fourth Proportional to 72,925.20, 109,144.80 and 52,877.70

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Solution

The fourth proportional to 72,925.20, 109,144.80 and 52,877.70 is: 79,140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,925.20 : 109,144.80 = 52,877.70 : x
  2. Step 2: Convert to fraction form
    72,925.20/109,144.80 = 52,877.70/x
  3. Step 3: Cross multiply
    72,925.20x = 109,144.80 × 52,877.70
  4. Step 4: Simplify right side
    72,925.20x = 5,771,325,990.96
  5. Step 5: Solve for x
    x = 5,771,325,990.96/72,925.20
  6. Step 6: Final answer
    x = 79,140.35

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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.