Home / 87,339.28-130,879.07-45,163.07

Finding the Fourth Proportional to 87,339.28, 130,879.07 and 45,163.07

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Solution

The fourth proportional to 87,339.28, 130,879.07 and 45,163.07 is: 67,677.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,339.28 : 130,879.07 = 45,163.07 : x
  2. Step 2: Convert to fraction form
    87,339.28/130,879.07 = 45,163.07/x
  3. Step 3: Cross multiply
    87,339.28x = 130,879.07 × 45,163.07
  4. Step 4: Simplify right side
    87,339.28x = 5,910,900,192.36
  5. Step 5: Solve for x
    x = 5,910,900,192.36/87,339.28
  6. Step 6: Final answer
    x = 67,677.46

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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.