Home / 66,366.66-91,586.12-39,510.11

Finding the Fourth Proportional to 66,366.66, 91,586.12 and 39,510.11

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Solution

The fourth proportional to 66,366.66, 91,586.12 and 39,510.11 is: 54,524.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,366.66 : 91,586.12 = 39,510.11 : x
  2. Step 2: Convert to fraction form
    66,366.66/91,586.12 = 39,510.11/x
  3. Step 3: Cross multiply
    66,366.66x = 91,586.12 × 39,510.11
  4. Step 4: Simplify right side
    66,366.66x = 3,618,577,020.19
  5. Step 5: Solve for x
    x = 3,618,577,020.19/66,366.66
  6. Step 6: Final answer
    x = 54,524.02

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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.