Home / 72,284.92-99,744.24-40,445.80

Finding the Fourth Proportional to 72,284.92, 99,744.24 and 40,445.80

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Solution

The fourth proportional to 72,284.92, 99,744.24 and 40,445.80 is: 55,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,284.92 : 99,744.24 = 40,445.80 : x
  2. Step 2: Convert to fraction form
    72,284.92/99,744.24 = 40,445.80/x
  3. Step 3: Cross multiply
    72,284.92x = 99,744.24 × 40,445.80
  4. Step 4: Simplify right side
    72,284.92x = 4,034,235,582.19
  5. Step 5: Solve for x
    x = 4,034,235,582.19/72,284.92
  6. Step 6: Final answer
    x = 55,810.20

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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.