Home / 85,681.44-118,231.86-49,876.20

Finding the Fourth Proportional to 85,681.44, 118,231.86 and 49,876.20

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Solution

The fourth proportional to 85,681.44, 118,231.86 and 49,876.20 is: 68,824.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,681.44 : 118,231.86 = 49,876.20 : x
  2. Step 2: Convert to fraction form
    85,681.44/118,231.86 = 49,876.20/x
  3. Step 3: Cross multiply
    85,681.44x = 118,231.86 × 49,876.20
  4. Step 4: Simplify right side
    85,681.44x = 5,896,955,895.73
  5. Step 5: Solve for x
    x = 5,896,955,895.73/85,681.44
  6. Step 6: Final answer
    x = 68,824.19

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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.