Home / 66,929.64-100,362.39-38,857.45

Finding the Fourth Proportional to 66,929.64, 100,362.39 and 38,857.45

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Solution

The fourth proportional to 66,929.64, 100,362.39 and 38,857.45 is: 58,267.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,929.64 : 100,362.39 = 38,857.45 : x
  2. Step 2: Convert to fraction form
    66,929.64/100,362.39 = 38,857.45/x
  3. Step 3: Cross multiply
    66,929.64x = 100,362.39 × 38,857.45
  4. Step 4: Simplify right side
    66,929.64x = 3,899,826,279.17
  5. Step 5: Solve for x
    x = 3,899,826,279.17/66,929.64
  6. Step 6: Final answer
    x = 58,267.55

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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.