Home / 79,627.19-109,890.05-45,641.32

Finding the Fourth Proportional to 79,627.19, 109,890.05 and 45,641.32

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Solution

The fourth proportional to 79,627.19, 109,890.05 and 45,641.32 is: 62,987.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,627.19 : 109,890.05 = 45,641.32 : x
  2. Step 2: Convert to fraction form
    79,627.19/109,890.05 = 45,641.32/x
  3. Step 3: Cross multiply
    79,627.19x = 109,890.05 × 45,641.32
  4. Step 4: Simplify right side
    79,627.19x = 5,015,527,308.80
  5. Step 5: Solve for x
    x = 5,015,527,308.80/79,627.19
  6. Step 6: Final answer
    x = 62,987.63

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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.