Home / 72,291.06-99,738.93-40,454.90

Finding the Fourth Proportional to 72,291.06, 99,738.93 and 40,454.90

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Solution

The fourth proportional to 72,291.06, 99,738.93 and 40,454.90 is: 55,815.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,291.06 : 99,738.93 = 40,454.90 : x
  2. Step 2: Convert to fraction form
    72,291.06/99,738.93 = 40,454.90/x
  3. Step 3: Cross multiply
    72,291.06x = 99,738.93 × 40,454.90
  4. Step 4: Simplify right side
    72,291.06x = 4,034,928,439.26
  5. Step 5: Solve for x
    x = 4,034,928,439.26/72,291.06
  6. Step 6: Final answer
    x = 55,815.04

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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.