Home / 66,320.08-91,520.76-36,512.08

Finding the Fourth Proportional to 66,320.08, 91,520.76 and 36,512.08

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Solution

The fourth proportional to 66,320.08, 91,520.76 and 36,512.08 is: 50,386.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,320.08 : 91,520.76 = 36,512.08 : x
  2. Step 2: Convert to fraction form
    66,320.08/91,520.76 = 36,512.08/x
  3. Step 3: Cross multiply
    66,320.08x = 91,520.76 × 36,512.08
  4. Step 4: Simplify right side
    66,320.08x = 3,341,613,310.78
  5. Step 5: Solve for x
    x = 3,341,613,310.78/66,320.08
  6. Step 6: Final answer
    x = 50,386.15

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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.