Home / 91,180.10-136,756.46-28,842.50

Finding the Fourth Proportional to 91,180.10, 136,756.46 and 28,842.50

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Solution

The fourth proportional to 91,180.10, 136,756.46 and 28,842.50 is: 43,259.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,180.10 : 136,756.46 = 28,842.50 : x
  2. Step 2: Convert to fraction form
    91,180.10/136,756.46 = 28,842.50/x
  3. Step 3: Cross multiply
    91,180.10x = 136,756.46 × 28,842.50
  4. Step 4: Simplify right side
    91,180.10x = 3,944,398,197.55
  5. Step 5: Solve for x
    x = 3,944,398,197.55/91,180.10
  6. Step 6: Final answer
    x = 43,259.42

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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.