Home / 72,442.74-99,975.78-40,613.70

Finding the Fourth Proportional to 72,442.74, 99,975.78 and 40,613.70

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Solution

The fourth proportional to 72,442.74, 99,975.78 and 40,613.70 is: 56,049.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,442.74 : 99,975.78 = 40,613.70 : x
  2. Step 2: Convert to fraction form
    72,442.74/99,975.78 = 40,613.70/x
  3. Step 3: Cross multiply
    72,442.74x = 99,975.78 × 40,613.70
  4. Step 4: Simplify right side
    72,442.74x = 4,060,386,336.19
  5. Step 5: Solve for x
    x = 4,060,386,336.19/72,442.74
  6. Step 6: Final answer
    x = 56,049.60

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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.