Home / 65,139.12-89,893.08-35,331.12

Finding the Fourth Proportional to 65,139.12, 89,893.08 and 35,331.12

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Solution

The fourth proportional to 65,139.12, 89,893.08 and 35,331.12 is: 48,757.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,139.12 : 89,893.08 = 35,331.12 : x
  2. Step 2: Convert to fraction form
    65,139.12/89,893.08 = 35,331.12/x
  3. Step 3: Cross multiply
    65,139.12x = 89,893.08 × 35,331.12
  4. Step 4: Simplify right side
    65,139.12x = 3,176,023,196.65
  5. Step 5: Solve for x
    x = 3,176,023,196.65/65,139.12
  6. Step 6: Final answer
    x = 48,757.54

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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.