Home / 87,509.22-120,759.93-49,270.74

Finding the Fourth Proportional to 87,509.22, 120,759.93 and 49,270.74

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Solution

The fourth proportional to 87,509.22, 120,759.93 and 49,270.74 is: 67,992.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,509.22 : 120,759.93 = 49,270.74 : x
  2. Step 2: Convert to fraction form
    87,509.22/120,759.93 = 49,270.74/x
  3. Step 3: Cross multiply
    87,509.22x = 120,759.93 × 49,270.74
  4. Step 4: Simplify right side
    87,509.22x = 5,949,931,113.45
  5. Step 5: Solve for x
    x = 5,949,931,113.45/87,509.22
  6. Step 6: Final answer
    x = 67,992.05

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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.