Home / 81,532.55-122,310.98-28,937.63

Finding the Fourth Proportional to 81,532.55, 122,310.98 and 28,937.63

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Solution

The fourth proportional to 81,532.55, 122,310.98 and 28,937.63 is: 43,410.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,532.55 : 122,310.98 = 28,937.63 : x
  2. Step 2: Convert to fraction form
    81,532.55/122,310.98 = 28,937.63/x
  3. Step 3: Cross multiply
    81,532.55x = 122,310.98 × 28,937.63
  4. Step 4: Simplify right side
    81,532.55x = 3,539,389,884.18
  5. Step 5: Solve for x
    x = 3,539,389,884.18/81,532.55
  6. Step 6: Final answer
    x = 43,410.76

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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.