Home / 85,749.48-128,592.62-29,575.18

Finding the Fourth Proportional to 85,749.48, 128,592.62 and 29,575.18

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Solution

The fourth proportional to 85,749.48, 128,592.62 and 29,575.18 is: 44,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,749.48 : 128,592.62 = 29,575.18 : x
  2. Step 2: Convert to fraction form
    85,749.48/128,592.62 = 29,575.18/x
  3. Step 3: Cross multiply
    85,749.48x = 128,592.62 × 29,575.18
  4. Step 4: Simplify right side
    85,749.48x = 3,803,149,883.17
  5. Step 5: Solve for x
    x = 3,803,149,883.17/85,749.48
  6. Step 6: Final answer
    x = 44,351.87

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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.