Home / 66,279.36-91,464.16-36,065.28

Finding the Fourth Proportional to 66,279.36, 91,464.16 and 36,065.28

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Solution

The fourth proportional to 66,279.36, 91,464.16 and 36,065.28 is: 49,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,279.36 : 91,464.16 = 36,065.28 : x
  2. Step 2: Convert to fraction form
    66,279.36/91,464.16 = 36,065.28/x
  3. Step 3: Cross multiply
    66,279.36x = 91,464.16 × 36,065.28
  4. Step 4: Simplify right side
    66,279.36x = 3,298,680,540.36
  5. Step 5: Solve for x
    x = 3,298,680,540.36/66,279.36
  6. Step 6: Final answer
    x = 49,769.35

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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.