Home / 66,112.59-91,212.85-42,253.03

Finding the Fourth Proportional to 66,112.59, 91,212.85 and 42,253.03

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Solution

The fourth proportional to 66,112.59, 91,212.85 and 42,253.03 is: 58,294.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,112.59 : 91,212.85 = 42,253.03 : x
  2. Step 2: Convert to fraction form
    66,112.59/91,212.85 = 42,253.03/x
  3. Step 3: Cross multiply
    66,112.59x = 91,212.85 × 42,253.03
  4. Step 4: Simplify right side
    66,112.59x = 3,854,019,181.80
  5. Step 5: Solve for x
    x = 3,854,019,181.80/66,112.59
  6. Step 6: Final answer
    x = 58,294.78

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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.