Home / 87,215.54-120,376.53-66,852.14

Finding the Fourth Proportional to 87,215.54, 120,376.53 and 66,852.14

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Solution

The fourth proportional to 87,215.54, 120,376.53 and 66,852.14 is: 92,270.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,215.54 : 120,376.53 = 66,852.14 : x
  2. Step 2: Convert to fraction form
    87,215.54/120,376.53 = 66,852.14/x
  3. Step 3: Cross multiply
    87,215.54x = 120,376.53 × 66,852.14
  4. Step 4: Simplify right side
    87,215.54x = 8,047,428,034.39
  5. Step 5: Solve for x
    x = 8,047,428,034.39/87,215.54
  6. Step 6: Final answer
    x = 92,270.58

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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.