Home / 40,775.75-56,242.10-39,404.12

Finding the Fourth Proportional to 40,775.75, 56,242.10 and 39,404.12

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Solution

The fourth proportional to 40,775.75, 56,242.10 and 39,404.12 is: 54,350.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,775.75 : 56,242.10 = 39,404.12 : x
  2. Step 2: Convert to fraction form
    40,775.75/56,242.10 = 39,404.12/x
  3. Step 3: Cross multiply
    40,775.75x = 56,242.10 × 39,404.12
  4. Step 4: Simplify right side
    40,775.75x = 2,216,170,369.47
  5. Step 5: Solve for x
    x = 2,216,170,369.47/40,775.75
  6. Step 6: Final answer
    x = 54,350.20

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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.