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Finding the Fourth Proportional to 83,171.76, 114,779.86 and 45,448.44

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Solution

The fourth proportional to 83,171.76, 114,779.86 and 45,448.44 is: 62,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,171.76 : 114,779.86 = 45,448.44 : x
  2. Step 2: Convert to fraction form
    83,171.76/114,779.86 = 45,448.44/x
  3. Step 3: Cross multiply
    83,171.76x = 114,779.86 × 45,448.44
  4. Step 4: Simplify right side
    83,171.76x = 5,216,565,580.42
  5. Step 5: Solve for x
    x = 5,216,565,580.42/83,171.76
  6. Step 6: Final answer
    x = 62,720.39

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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.