Home / 87,745.86-131,686.47-65,307.24

Finding the Fourth Proportional to 87,745.86, 131,686.47 and 65,307.24

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Solution

The fourth proportional to 87,745.86, 131,686.47 and 65,307.24 is: 98,011.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,745.86 : 131,686.47 = 65,307.24 : x
  2. Step 2: Convert to fraction form
    87,745.86/131,686.47 = 65,307.24/x
  3. Step 3: Cross multiply
    87,745.86x = 131,686.47 × 65,307.24
  4. Step 4: Simplify right side
    87,745.86x = 8,600,079,901.04
  5. Step 5: Solve for x
    x = 8,600,079,901.04/87,745.86
  6. Step 6: Final answer
    x = 98,011.23

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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.