Home / 84,879.18-127,315.53-28,723.50

Finding the Fourth Proportional to 84,879.18, 127,315.53 and 28,723.50

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Solution

The fourth proportional to 84,879.18, 127,315.53 and 28,723.50 is: 43,084.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,879.18 : 127,315.53 = 28,723.50 : x
  2. Step 2: Convert to fraction form
    84,879.18/127,315.53 = 28,723.50/x
  3. Step 3: Cross multiply
    84,879.18x = 127,315.53 × 28,723.50
  4. Step 4: Simplify right side
    84,879.18x = 3,656,947,625.96
  5. Step 5: Solve for x
    x = 3,656,947,625.96/84,879.18
  6. Step 6: Final answer
    x = 43,084.15

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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.