Home / 87,048.48-130,397.76-45,408

Finding the Fourth Proportional to 87,048.48, 130,397.76 and 45,408

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Solution

The fourth proportional to 87,048.48, 130,397.76 and 45,408 is: 68,020.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,048.48 : 130,397.76 = 45,408 : x
  2. Step 2: Convert to fraction form
    87,048.48/130,397.76 = 45,408/x
  3. Step 3: Cross multiply
    87,048.48x = 130,397.76 × 45,408
  4. Step 4: Simplify right side
    87,048.48x = 5,921,101,486.08
  5. Step 5: Solve for x
    x = 5,921,101,486.08/87,048.48
  6. Step 6: Final answer
    x = 68,020.73

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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.