Home / 66,187.20-91,337.94-35,972.76

Finding the Fourth Proportional to 66,187.20, 91,337.94 and 35,972.76

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Solution

The fourth proportional to 66,187.20, 91,337.94 and 35,972.76 is: 49,642.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,187.20 : 91,337.94 = 35,972.76 : x
  2. Step 2: Convert to fraction form
    66,187.20/91,337.94 = 35,972.76/x
  3. Step 3: Cross multiply
    66,187.20x = 91,337.94 × 35,972.76
  4. Step 4: Simplify right side
    66,187.20x = 3,285,677,794.51
  5. Step 5: Solve for x
    x = 3,285,677,794.51/66,187.20
  6. Step 6: Final answer
    x = 49,642.19

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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.