Home / 87,299.46-130,790.61-67,341.06

Finding the Fourth Proportional to 87,299.46, 130,790.61 and 67,341.06

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Solution

The fourth proportional to 87,299.46, 130,790.61 and 67,341.06 is: 100,889.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,299.46 : 130,790.61 = 67,341.06 : x
  2. Step 2: Convert to fraction form
    87,299.46/130,790.61 = 67,341.06/x
  3. Step 3: Cross multiply
    87,299.46x = 130,790.61 × 67,341.06
  4. Step 4: Simplify right side
    87,299.46x = 8,807,578,315.45
  5. Step 5: Solve for x
    x = 8,807,578,315.45/87,299.46
  6. Step 6: Final answer
    x = 100,889.26

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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.