Home / 78,176.93-107,844.51-49,448.20

Finding the Fourth Proportional to 78,176.93, 107,844.51 and 49,448.20

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Solution

The fourth proportional to 78,176.93, 107,844.51 and 49,448.20 is: 68,213.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,176.93 : 107,844.51 = 49,448.20 : x
  2. Step 2: Convert to fraction form
    78,176.93/107,844.51 = 49,448.20/x
  3. Step 3: Cross multiply
    78,176.93x = 107,844.51 × 49,448.20
  4. Step 4: Simplify right side
    78,176.93x = 5,332,716,899.38
  5. Step 5: Solve for x
    x = 5,332,716,899.38/78,176.93
  6. Step 6: Final answer
    x = 68,213.43

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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.