Home / 81,480.60-112,442.20-45,670.56

Finding the Fourth Proportional to 81,480.60, 112,442.20 and 45,670.56

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Solution

The fourth proportional to 81,480.60, 112,442.20 and 45,670.56 is: 63,024.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,480.60 : 112,442.20 = 45,670.56 : x
  2. Step 2: Convert to fraction form
    81,480.60/112,442.20 = 45,670.56/x
  3. Step 3: Cross multiply
    81,480.60x = 112,442.20 × 45,670.56
  4. Step 4: Simplify right side
    81,480.60x = 5,135,298,241.63
  5. Step 5: Solve for x
    x = 5,135,298,241.63/81,480.60
  6. Step 6: Final answer
    x = 63,024.80

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1.5x scale

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.