Home / 66,456.89-99,261.66-60,122.09

Finding the Fourth Proportional to 66,456.89, 99,261.66 and 60,122.09

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Solution

The fourth proportional to 66,456.89, 99,261.66 and 60,122.09 is: 89,799.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,456.89 : 99,261.66 = 60,122.09 : x
  2. Step 2: Convert to fraction form
    66,456.89/99,261.66 = 60,122.09/x
  3. Step 3: Cross multiply
    66,456.89x = 99,261.66 × 60,122.09
  4. Step 4: Simplify right side
    66,456.89x = 5,967,817,959.76
  5. Step 5: Solve for x
    x = 5,967,817,959.76/66,456.89
  6. Step 6: Final answer
    x = 89,799.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.