Home / 85,619.79-128,397.76-29,444

Finding the Fourth Proportional to 85,619.79, 128,397.76 and 29,444

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Solution

The fourth proportional to 85,619.79, 128,397.76 and 29,444 is: 44,155.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,619.79 : 128,397.76 = 29,444 : x
  2. Step 2: Convert to fraction form
    85,619.79/128,397.76 = 29,444/x
  3. Step 3: Cross multiply
    85,619.79x = 128,397.76 × 29,444
  4. Step 4: Simplify right side
    85,619.79x = 3,780,543,645.44
  5. Step 5: Solve for x
    x = 3,780,543,645.44/85,619.79
  6. Step 6: Final answer
    x = 44,155.02

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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.