Home / 71,842.10-99,145.18-40,010.99

Finding the Fourth Proportional to 71,842.10, 99,145.18 and 40,010.99

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Solution

The fourth proportional to 71,842.10, 99,145.18 and 40,010.99 is: 55,216.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,842.10 : 99,145.18 = 40,010.99 : x
  2. Step 2: Convert to fraction form
    71,842.10/99,145.18 = 40,010.99/x
  3. Step 3: Cross multiply
    71,842.10x = 99,145.18 × 40,010.99
  4. Step 4: Simplify right side
    71,842.10x = 3,966,897,097.27
  5. Step 5: Solve for x
    x = 3,966,897,097.27/71,842.10
  6. Step 6: Final answer
    x = 55,216.89

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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.