Home / 89,342.12-123,283.01-53,531.21

Finding the Fourth Proportional to 89,342.12, 123,283.01 and 53,531.21

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Solution

The fourth proportional to 89,342.12, 123,283.01 and 53,531.21 is: 73,867.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,342.12 : 123,283.01 = 53,531.21 : x
  2. Step 2: Convert to fraction form
    89,342.12/123,283.01 = 53,531.21/x
  3. Step 3: Cross multiply
    89,342.12x = 123,283.01 × 53,531.21
  4. Step 4: Simplify right side
    89,342.12x = 6,599,489,139.78
  5. Step 5: Solve for x
    x = 6,599,489,139.78/89,342.12
  6. Step 6: Final answer
    x = 73,867.61

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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.