Home / 87,277.95-120,440.34-53,343.18

Finding the Fourth Proportional to 87,277.95, 120,440.34 and 53,343.18

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Solution

The fourth proportional to 87,277.95, 120,440.34 and 53,343.18 is: 73,611.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,277.95 : 120,440.34 = 53,343.18 : x
  2. Step 2: Convert to fraction form
    87,277.95/120,440.34 = 53,343.18/x
  3. Step 3: Cross multiply
    87,277.95x = 120,440.34 × 53,343.18
  4. Step 4: Simplify right side
    87,277.95x = 6,424,670,735.88
  5. Step 5: Solve for x
    x = 6,424,670,735.88/87,277.95
  6. Step 6: Final answer
    x = 73,611.61

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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.