Home / 69,459.09-95,851.56-40,778.28

Finding the Fourth Proportional to 69,459.09, 95,851.56 and 40,778.28

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Solution

The fourth proportional to 69,459.09, 95,851.56 and 40,778.28 is: 56,272.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,459.09 : 95,851.56 = 40,778.28 : x
  2. Step 2: Convert to fraction form
    69,459.09/95,851.56 = 40,778.28/x
  3. Step 3: Cross multiply
    69,459.09x = 95,851.56 × 40,778.28
  4. Step 4: Simplify right side
    69,459.09x = 3,908,661,752.12
  5. Step 5: Solve for x
    x = 3,908,661,752.12/69,459.09
  6. Step 6: Final answer
    x = 56,272.86

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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.