Home / 66,357.90-91,567.26-40,860.18

Finding the Fourth Proportional to 66,357.90, 91,567.26 and 40,860.18

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Solution

The fourth proportional to 66,357.90, 91,567.26 and 40,860.18 is: 56,382.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,357.90 : 91,567.26 = 40,860.18 : x
  2. Step 2: Convert to fraction form
    66,357.90/91,567.26 = 40,860.18/x
  3. Step 3: Cross multiply
    66,357.90x = 91,567.26 × 40,860.18
  4. Step 4: Simplify right side
    66,357.90x = 3,741,454,725.71
  5. Step 5: Solve for x
    x = 3,741,454,725.71/66,357.90
  6. Step 6: Final answer
    x = 56,382.96

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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.