Home / 89,531.60-123,547.56-51,291.30

Finding the Fourth Proportional to 89,531.60, 123,547.56 and 51,291.30

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Solution

The fourth proportional to 89,531.60, 123,547.56 and 51,291.30 is: 70,778.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,531.60 : 123,547.56 = 51,291.30 : x
  2. Step 2: Convert to fraction form
    89,531.60/123,547.56 = 51,291.30/x
  3. Step 3: Cross multiply
    89,531.60x = 123,547.56 × 51,291.30
  4. Step 4: Simplify right side
    89,531.60x = 6,336,914,964.23
  5. Step 5: Solve for x
    x = 6,336,914,964.23/89,531.60
  6. Step 6: Final answer
    x = 70,778.53

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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.