Home / 72,263.80-99,723.18-40,432.96

Finding the Fourth Proportional to 72,263.80, 99,723.18 and 40,432.96

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Solution

The fourth proportional to 72,263.80, 99,723.18 and 40,432.96 is: 55,797.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,263.80 : 99,723.18 = 40,432.96 : x
  2. Step 2: Convert to fraction form
    72,263.80/99,723.18 = 40,432.96/x
  3. Step 3: Cross multiply
    72,263.80x = 99,723.18 × 40,432.96
  4. Step 4: Simplify right side
    72,263.80x = 4,032,103,348.01
  5. Step 5: Solve for x
    x = 4,032,103,348.01/72,263.80
  6. Step 6: Final answer
    x = 55,797.00

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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.