Home / 85,027.72-127,365.90-49,861.48

Finding the Fourth Proportional to 85,027.72, 127,365.90 and 49,861.48

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Solution

The fourth proportional to 85,027.72, 127,365.90 and 49,861.48 is: 74,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,027.72 : 127,365.90 = 49,861.48 : x
  2. Step 2: Convert to fraction form
    85,027.72/127,365.90 = 49,861.48/x
  3. Step 3: Cross multiply
    85,027.72x = 127,365.90 × 49,861.48
  4. Step 4: Simplify right side
    85,027.72x = 6,350,652,275.53
  5. Step 5: Solve for x
    x = 6,350,652,275.53/85,027.72
  6. Step 6: Final answer
    x = 74,689.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.