Home / 76,282.90-105,276.61-42,302.04

Finding the Fourth Proportional to 76,282.90, 105,276.61 and 42,302.04

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Solution

The fourth proportional to 76,282.90, 105,276.61 and 42,302.04 is: 58,380.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,282.90 : 105,276.61 = 42,302.04 : x
  2. Step 2: Convert to fraction form
    76,282.90/105,276.61 = 42,302.04/x
  3. Step 3: Cross multiply
    76,282.90x = 105,276.61 × 42,302.04
  4. Step 4: Simplify right side
    76,282.90x = 4,453,415,367.28
  5. Step 5: Solve for x
    x = 4,453,415,367.28/76,282.90
  6. Step 6: Final answer
    x = 58,380.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.