Home / 77,728.30-107,255.51-49,037.14

Finding the Fourth Proportional to 77,728.30, 107,255.51 and 49,037.14

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Solution

The fourth proportional to 77,728.30, 107,255.51 and 49,037.14 is: 67,665.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,728.30 : 107,255.51 = 49,037.14 : x
  2. Step 2: Convert to fraction form
    77,728.30/107,255.51 = 49,037.14/x
  3. Step 3: Cross multiply
    77,728.30x = 107,255.51 × 49,037.14
  4. Step 4: Simplify right side
    77,728.30x = 5,259,503,459.64
  5. Step 5: Solve for x
    x = 5,259,503,459.64/77,728.30
  6. Step 6: Final answer
    x = 67,665.23

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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.