Home / 71,841.55-99,144.42-40,010.45

Finding the Fourth Proportional to 71,841.55, 99,144.42 and 40,010.45

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Solution

The fourth proportional to 71,841.55, 99,144.42 and 40,010.45 is: 55,216.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,841.55 : 99,144.42 = 40,010.45 : x
  2. Step 2: Convert to fraction form
    71,841.55/99,144.42 = 40,010.45/x
  3. Step 3: Cross multiply
    71,841.55x = 99,144.42 × 40,010.45
  4. Step 4: Simplify right side
    71,841.55x = 3,966,812,859.19
  5. Step 5: Solve for x
    x = 3,966,812,859.19/71,841.55
  6. Step 6: Final answer
    x = 55,216.14

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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.