Home / 55,680.12-83,372.40-43,551.36

Finding the Fourth Proportional to 55,680.12, 83,372.40 and 43,551.36

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Solution

The fourth proportional to 55,680.12, 83,372.40 and 43,551.36 is: 65,211.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,680.12 : 83,372.40 = 43,551.36 : x
  2. Step 2: Convert to fraction form
    55,680.12/83,372.40 = 43,551.36/x
  3. Step 3: Cross multiply
    55,680.12x = 83,372.40 × 43,551.36
  4. Step 4: Simplify right side
    55,680.12x = 3,630,981,406.46
  5. Step 5: Solve for x
    x = 3,630,981,406.46/55,680.12
  6. Step 6: Final answer
    x = 65,211.45

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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.