Home / 85,924.16-128,855.24-29,749.04

Finding the Fourth Proportional to 85,924.16, 128,855.24 and 29,749.04

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Solution

The fourth proportional to 85,924.16, 128,855.24 and 29,749.04 is: 44,612.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,924.16 : 128,855.24 = 29,749.04 : x
  2. Step 2: Convert to fraction form
    85,924.16/128,855.24 = 29,749.04/x
  3. Step 3: Cross multiply
    85,924.16x = 128,855.24 × 29,749.04
  4. Step 4: Simplify right side
    85,924.16x = 3,833,319,688.97
  5. Step 5: Solve for x
    x = 3,833,319,688.97/85,924.16
  6. Step 6: Final answer
    x = 44,612.83

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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.