Home / 80,806.56-121,153.64-35,803.50

Finding the Fourth Proportional to 80,806.56, 121,153.64 and 35,803.50

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Solution

The fourth proportional to 80,806.56, 121,153.64 and 35,803.50 is: 53,680.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,806.56 : 121,153.64 = 35,803.50 : x
  2. Step 2: Convert to fraction form
    80,806.56/121,153.64 = 35,803.50/x
  3. Step 3: Cross multiply
    80,806.56x = 121,153.64 × 35,803.50
  4. Step 4: Simplify right side
    80,806.56x = 4,337,724,170.72
  5. Step 5: Solve for x
    x = 4,337,724,170.72/80,806.56
  6. Step 6: Final answer
    x = 53,680.35

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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.