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Finding the Fourth Proportional to 85,294.67, 127,970.31 and 26,130.92

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Solution

The fourth proportional to 85,294.67, 127,970.31 and 26,130.92 is: 39,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,294.67 : 127,970.31 = 26,130.92 : x
  2. Step 2: Convert to fraction form
    85,294.67/127,970.31 = 26,130.92/x
  3. Step 3: Cross multiply
    85,294.67x = 127,970.31 × 26,130.92
  4. Step 4: Simplify right side
    85,294.67x = 3,343,981,293.13
  5. Step 5: Solve for x
    x = 3,343,981,293.13/85,294.67
  6. Step 6: Final answer
    x = 39,205.05

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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.