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Finding the Fourth Proportional to 66,920.16, 100,363.44 and 27,488.16

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Solution

The fourth proportional to 66,920.16, 100,363.44 and 27,488.16 is: 41,225.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,920.16 : 100,363.44 = 27,488.16 : x
  2. Step 2: Convert to fraction form
    66,920.16/100,363.44 = 27,488.16/x
  3. Step 3: Cross multiply
    66,920.16x = 100,363.44 × 27,488.16
  4. Step 4: Simplify right side
    66,920.16x = 2,758,806,296.87
  5. Step 5: Solve for x
    x = 2,758,806,296.87/66,920.16
  6. Step 6: Final answer
    x = 41,225.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.