Home / 85,567.28-128,318.96-29,391.44

Finding the Fourth Proportional to 85,567.28, 128,318.96 and 29,391.44

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Solution

The fourth proportional to 85,567.28, 128,318.96 and 29,391.44 is: 44,076.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,567.28 : 128,318.96 = 29,391.44 : x
  2. Step 2: Convert to fraction form
    85,567.28/128,318.96 = 29,391.44/x
  3. Step 3: Cross multiply
    85,567.28x = 128,318.96 × 29,391.44
  4. Step 4: Simplify right side
    85,567.28x = 3,771,479,013.70
  5. Step 5: Solve for x
    x = 3,771,479,013.70/85,567.28
  6. Step 6: Final answer
    x = 44,076.18

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1.5x scale

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.