Home / 66,100.54-91,239.55-42,227.21

Finding the Fourth Proportional to 66,100.54, 91,239.55 and 42,227.21

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Solution

The fourth proportional to 66,100.54, 91,239.55 and 42,227.21 is: 58,286.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,100.54 : 91,239.55 = 42,227.21 : x
  2. Step 2: Convert to fraction form
    66,100.54/91,239.55 = 42,227.21/x
  3. Step 3: Cross multiply
    66,100.54x = 91,239.55 × 42,227.21
  4. Step 4: Simplify right side
    66,100.54x = 3,852,791,610.11
  5. Step 5: Solve for x
    x = 3,852,791,610.11/66,100.54
  6. Step 6: Final answer
    x = 58,286.84

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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.