Home / 72,350.25-99,843.38-40,519.16

Finding the Fourth Proportional to 72,350.25, 99,843.38 and 40,519.16

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Solution

The fourth proportional to 72,350.25, 99,843.38 and 40,519.16 is: 55,916.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,350.25 : 99,843.38 = 40,519.16 : x
  2. Step 2: Convert to fraction form
    72,350.25/99,843.38 = 40,519.16/x
  3. Step 3: Cross multiply
    72,350.25x = 99,843.38 × 40,519.16
  4. Step 4: Simplify right side
    72,350.25x = 4,045,569,713.71
  5. Step 5: Solve for x
    x = 4,045,569,713.71/72,350.25
  6. Step 6: Final answer
    x = 55,916.46

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1.5x scale

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.