Home / 85,084.29-127,563.80-28,909.26

Finding the Fourth Proportional to 85,084.29, 127,563.80 and 28,909.26

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Solution

The fourth proportional to 85,084.29, 127,563.80 and 28,909.26 is: 43,342.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,084.29 : 127,563.80 = 28,909.26 : x
  2. Step 2: Convert to fraction form
    85,084.29/127,563.80 = 28,909.26/x
  3. Step 3: Cross multiply
    85,084.29x = 127,563.80 × 28,909.26
  4. Step 4: Simplify right side
    85,084.29x = 3,687,774,916.24
  5. Step 5: Solve for x
    x = 3,687,774,916.24/85,084.29
  6. Step 6: Final answer
    x = 43,342.61

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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.