Home / 80,526.72-120,632.07-65,549.95

Finding the Fourth Proportional to 80,526.72, 120,632.07 and 65,549.95

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Solution

The fourth proportional to 80,526.72, 120,632.07 and 65,549.95 is: 98,196.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,526.72 : 120,632.07 = 65,549.95 : x
  2. Step 2: Convert to fraction form
    80,526.72/120,632.07 = 65,549.95/x
  3. Step 3: Cross multiply
    80,526.72x = 120,632.07 × 65,549.95
  4. Step 4: Simplify right side
    80,526.72x = 7,907,426,101.13
  5. Step 5: Solve for x
    x = 7,907,426,101.13/80,526.72
  6. Step 6: Final answer
    x = 98,196.30

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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.