Home / 66,187.30-91,339.07-35,972.69

Finding the Fourth Proportional to 66,187.30, 91,339.07 and 35,972.69

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Solution

The fourth proportional to 66,187.30, 91,339.07 and 35,972.69 is: 49,642.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,187.30 : 91,339.07 = 35,972.69 : x
  2. Step 2: Convert to fraction form
    66,187.30/91,339.07 = 35,972.69/x
  3. Step 3: Cross multiply
    66,187.30x = 91,339.07 × 35,972.69
  4. Step 4: Simplify right side
    66,187.30x = 3,285,712,368.28
  5. Step 5: Solve for x
    x = 3,285,712,368.28/66,187.30
  6. Step 6: Final answer
    x = 49,642.64

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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.