Home / 87,065.43-130,647.36-37,140.81

Finding the Fourth Proportional to 87,065.43, 130,647.36 and 37,140.81

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Solution

The fourth proportional to 87,065.43, 130,647.36 and 37,140.81 is: 55,732.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,065.43 : 130,647.36 = 37,140.81 : x
  2. Step 2: Convert to fraction form
    87,065.43/130,647.36 = 37,140.81/x
  3. Step 3: Cross multiply
    87,065.43x = 130,647.36 × 37,140.81
  4. Step 4: Simplify right side
    87,065.43x = 4,852,348,774.76
  5. Step 5: Solve for x
    x = 4,852,348,774.76/87,065.43
  6. Step 6: Final answer
    x = 55,732.21

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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.