Home / 63,991.12-96,020.28-45,391.08

Finding the Fourth Proportional to 63,991.12, 96,020.28 and 45,391.08

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Solution

The fourth proportional to 63,991.12, 96,020.28 and 45,391.08 is: 68,110.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,991.12 : 96,020.28 = 45,391.08 : x
  2. Step 2: Convert to fraction form
    63,991.12/96,020.28 = 45,391.08/x
  3. Step 3: Cross multiply
    63,991.12x = 96,020.28 × 45,391.08
  4. Step 4: Simplify right side
    63,991.12x = 4,358,464,211.10
  5. Step 5: Solve for x
    x = 4,358,464,211.10/63,991.12
  6. Step 6: Final answer
    x = 68,110.45

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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.