Home / 81,259.44-112,143.76-45,452.76

Finding the Fourth Proportional to 81,259.44, 112,143.76 and 45,452.76

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Solution

The fourth proportional to 81,259.44, 112,143.76 and 45,452.76 is: 62,728.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,259.44 : 112,143.76 = 45,452.76 : x
  2. Step 2: Convert to fraction form
    81,259.44/112,143.76 = 45,452.76/x
  3. Step 3: Cross multiply
    81,259.44x = 112,143.76 × 45,452.76
  4. Step 4: Simplify right side
    81,259.44x = 5,097,243,408.78
  5. Step 5: Solve for x
    x = 5,097,243,408.78/81,259.44
  6. Step 6: Final answer
    x = 62,728.02

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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.