Home / 66,565.11-91,856.16-36,344.40

Finding the Fourth Proportional to 66,565.11, 91,856.16 and 36,344.40

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Solution

The fourth proportional to 66,565.11, 91,856.16 and 36,344.40 is: 50,153.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,565.11 : 91,856.16 = 36,344.40 : x
  2. Step 2: Convert to fraction form
    66,565.11/91,856.16 = 36,344.40/x
  3. Step 3: Cross multiply
    66,565.11x = 91,856.16 × 36,344.40
  4. Step 4: Simplify right side
    66,565.11x = 3,338,457,021.50
  5. Step 5: Solve for x
    x = 3,338,457,021.50/66,565.11
  6. Step 6: Final answer
    x = 50,153.26

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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.