Home / 66,215.94-91,377.69-39,007.83

Finding the Fourth Proportional to 66,215.94, 91,377.69 and 39,007.83

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Solution

The fourth proportional to 66,215.94, 91,377.69 and 39,007.83 is: 53,830.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,215.94 : 91,377.69 = 39,007.83 : x
  2. Step 2: Convert to fraction form
    66,215.94/91,377.69 = 39,007.83/x
  3. Step 3: Cross multiply
    66,215.94x = 91,377.69 × 39,007.83
  4. Step 4: Simplify right side
    66,215.94x = 3,564,445,593.70
  5. Step 5: Solve for x
    x = 3,564,445,593.70/66,215.94
  6. Step 6: Final answer
    x = 53,830.63

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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.