Home / 87,085.84-130,661.28-49,622.80

Finding the Fourth Proportional to 87,085.84, 130,661.28 and 49,622.80

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Solution

The fourth proportional to 87,085.84, 130,661.28 and 49,622.80 is: 74,452.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,085.84 : 130,661.28 = 49,622.80 : x
  2. Step 2: Convert to fraction form
    87,085.84/130,661.28 = 49,622.80/x
  3. Step 3: Cross multiply
    87,085.84x = 130,661.28 × 49,622.80
  4. Step 4: Simplify right side
    87,085.84x = 6,483,778,565.18
  5. Step 5: Solve for x
    x = 6,483,778,565.18/87,085.84
  6. Step 6: Final answer
    x = 74,452.73

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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.