Home / 72,375.91-99,881.58-40,545.07

Finding the Fourth Proportional to 72,375.91, 99,881.58 and 40,545.07

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Solution

The fourth proportional to 72,375.91, 99,881.58 and 40,545.07 is: 55,953.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,375.91 : 99,881.58 = 40,545.07 : x
  2. Step 2: Convert to fraction form
    72,375.91/99,881.58 = 40,545.07/x
  3. Step 3: Cross multiply
    72,375.91x = 99,881.58 × 40,545.07
  4. Step 4: Simplify right side
    72,375.91x = 4,049,705,652.81
  5. Step 5: Solve for x
    x = 4,049,705,652.81/72,375.91
  6. Step 6: Final answer
    x = 55,953.78

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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.