Home / 75,264.56-103,627.32-66,278.96

Finding the Fourth Proportional to 75,264.56, 103,627.32 and 66,278.96

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Solution

The fourth proportional to 75,264.56, 103,627.32 and 66,278.96 is: 91,255.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,264.56 : 103,627.32 = 66,278.96 : x
  2. Step 2: Convert to fraction form
    75,264.56/103,627.32 = 66,278.96/x
  3. Step 3: Cross multiply
    75,264.56x = 103,627.32 × 66,278.96
  4. Step 4: Simplify right side
    75,264.56x = 6,868,310,997.19
  5. Step 5: Solve for x
    x = 6,868,310,997.19/75,264.56
  6. Step 6: Final answer
    x = 91,255.58

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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.