Home / 81,157.02-121,748.60-24,997.11

Finding the Fourth Proportional to 81,157.02, 121,748.60 and 24,997.11

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Solution

The fourth proportional to 81,157.02, 121,748.60 and 24,997.11 is: 37,499.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,157.02 : 121,748.60 = 24,997.11 : x
  2. Step 2: Convert to fraction form
    81,157.02/121,748.60 = 24,997.11/x
  3. Step 3: Cross multiply
    81,157.02x = 121,748.60 × 24,997.11
  4. Step 4: Simplify right side
    81,157.02x = 3,043,363,146.55
  5. Step 5: Solve for x
    x = 3,043,363,146.55/81,157.02
  6. Step 6: Final answer
    x = 37,499.69

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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.