Home / 66,815.67-100,192.16-38,743.70

Finding the Fourth Proportional to 66,815.67, 100,192.16 and 38,743.70

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Solution

The fourth proportional to 66,815.67, 100,192.16 and 38,743.70 is: 58,097.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,815.67 : 100,192.16 = 38,743.70 : x
  2. Step 2: Convert to fraction form
    66,815.67/100,192.16 = 38,743.70/x
  3. Step 3: Cross multiply
    66,815.67x = 100,192.16 × 38,743.70
  4. Step 4: Simplify right side
    66,815.67x = 3,881,814,294.71
  5. Step 5: Solve for x
    x = 3,881,814,294.71/66,815.67
  6. Step 6: Final answer
    x = 58,097.36

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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.