Home / 66,870.38-92,272.29-40,007.54

Finding the Fourth Proportional to 66,870.38, 92,272.29 and 40,007.54

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Solution

The fourth proportional to 66,870.38, 92,272.29 and 40,007.54 is: 55,205.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,870.38 : 92,272.29 = 40,007.54 : x
  2. Step 2: Convert to fraction form
    66,870.38/92,272.29 = 40,007.54/x
  3. Step 3: Cross multiply
    66,870.38x = 92,272.29 × 40,007.54
  4. Step 4: Simplify right side
    66,870.38x = 3,691,587,333.07
  5. Step 5: Solve for x
    x = 3,691,587,333.07/66,870.38
  6. Step 6: Final answer
    x = 55,205.12

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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.