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Finding the Fourth Proportional to 85,014.75, 127,347.11 and 49,869.66

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Solution

The fourth proportional to 85,014.75, 127,347.11 and 49,869.66 is: 74,701.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,014.75 : 127,347.11 = 49,869.66 : x
  2. Step 2: Convert to fraction form
    85,014.75/127,347.11 = 49,869.66/x
  3. Step 3: Cross multiply
    85,014.75x = 127,347.11 × 49,869.66
  4. Step 4: Simplify right side
    85,014.75x = 6,350,756,828.33
  5. Step 5: Solve for x
    x = 6,350,756,828.33/85,014.75
  6. Step 6: Final answer
    x = 74,701.82

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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.