Home / 72,446.28-99,974.06-40,180.76

Finding the Fourth Proportional to 72,446.28, 99,974.06 and 40,180.76

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Solution

The fourth proportional to 72,446.28, 99,974.06 and 40,180.76 is: 55,448.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,446.28 : 99,974.06 = 40,180.76 : x
  2. Step 2: Convert to fraction form
    72,446.28/99,974.06 = 40,180.76/x
  3. Step 3: Cross multiply
    72,446.28x = 99,974.06 × 40,180.76
  4. Step 4: Simplify right side
    72,446.28x = 4,017,033,711.09
  5. Step 5: Solve for x
    x = 4,017,033,711.09/72,446.28
  6. Step 6: Final answer
    x = 55,448.45

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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.