Home / 87,029.52-120,100.32-49,303.68

Finding the Fourth Proportional to 87,029.52, 120,100.32 and 49,303.68

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Solution

The fourth proportional to 87,029.52, 120,100.32 and 49,303.68 is: 68,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,029.52 : 120,100.32 = 49,303.68 : x
  2. Step 2: Convert to fraction form
    87,029.52/120,100.32 = 49,303.68/x
  3. Step 3: Cross multiply
    87,029.52x = 120,100.32 × 49,303.68
  4. Step 4: Simplify right side
    87,029.52x = 5,921,387,745.18
  5. Step 5: Solve for x
    x = 5,921,387,745.18/87,029.52
  6. Step 6: Final answer
    x = 68,038.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.