Home / 81,643.32-122,227.08-60,676.20

Finding the Fourth Proportional to 81,643.32, 122,227.08 and 60,676.20

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Solution

The fourth proportional to 81,643.32, 122,227.08 and 60,676.20 is: 90,837.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,643.32 : 122,227.08 = 60,676.20 : x
  2. Step 2: Convert to fraction form
    81,643.32/122,227.08 = 60,676.20/x
  3. Step 3: Cross multiply
    81,643.32x = 122,227.08 × 60,676.20
  4. Step 4: Simplify right side
    81,643.32x = 7,416,274,751.50
  5. Step 5: Solve for x
    x = 7,416,274,751.50/81,643.32
  6. Step 6: Final answer
    x = 90,837.50

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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.