Home / 71,864.42-99,184.70-40,043.57

Finding the Fourth Proportional to 71,864.42, 99,184.70 and 40,043.57

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Solution

The fourth proportional to 71,864.42, 99,184.70 and 40,043.57 is: 55,266.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,864.42 : 99,184.70 = 40,043.57 : x
  2. Step 2: Convert to fraction form
    71,864.42/99,184.70 = 40,043.57/x
  3. Step 3: Cross multiply
    71,864.42x = 99,184.70 × 40,043.57
  4. Step 4: Simplify right side
    71,864.42x = 3,971,709,081.56
  5. Step 5: Solve for x
    x = 3,971,709,081.56/71,864.42
  6. Step 6: Final answer
    x = 55,266.70

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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.