Home / 85,331.31-127,992.17-26,166.81

Finding the Fourth Proportional to 85,331.31, 127,992.17 and 26,166.81

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Solution

The fourth proportional to 85,331.31, 127,992.17 and 26,166.81 is: 39,248.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,331.31 : 127,992.17 = 26,166.81 : x
  2. Step 2: Convert to fraction form
    85,331.31/127,992.17 = 26,166.81/x
  3. Step 3: Cross multiply
    85,331.31x = 127,992.17 × 26,166.81
  4. Step 4: Simplify right side
    85,331.31x = 3,349,146,663.04
  5. Step 5: Solve for x
    x = 3,349,146,663.04/85,331.31
  6. Step 6: Final answer
    x = 39,248.74

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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.