Home / 85,444.08-117,912.52-49,655.12

Finding the Fourth Proportional to 85,444.08, 117,912.52 and 49,655.12

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Solution

The fourth proportional to 85,444.08, 117,912.52 and 49,655.12 is: 68,523.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,444.08 : 117,912.52 = 49,655.12 : x
  2. Step 2: Convert to fraction form
    85,444.08/117,912.52 = 49,655.12/x
  3. Step 3: Cross multiply
    85,444.08x = 117,912.52 × 49,655.12
  4. Step 4: Simplify right side
    85,444.08x = 5,854,960,330.10
  5. Step 5: Solve for x
    x = 5,854,960,330.10/85,444.08
  6. Step 6: Final answer
    x = 68,523.89

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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.