Home / 91,220.52-136,829.84-28,891.04

Finding the Fourth Proportional to 91,220.52, 136,829.84 and 28,891.04

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Solution

The fourth proportional to 91,220.52, 136,829.84 and 28,891.04 is: 43,336.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,220.52 : 136,829.84 = 28,891.04 : x
  2. Step 2: Convert to fraction form
    91,220.52/136,829.84 = 28,891.04/x
  3. Step 3: Cross multiply
    91,220.52x = 136,829.84 × 28,891.04
  4. Step 4: Simplify right side
    91,220.52x = 3,953,156,380.63
  5. Step 5: Solve for x
    x = 3,953,156,380.63/91,220.52
  6. Step 6: Final answer
    x = 43,336.26

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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.