Home / 66,886.02-100,338.27-38,819.30

Finding the Fourth Proportional to 66,886.02, 100,338.27 and 38,819.30

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Solution

The fourth proportional to 66,886.02, 100,338.27 and 38,819.30 is: 58,234.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,886.02 : 100,338.27 = 38,819.30 : x
  2. Step 2: Convert to fraction form
    66,886.02/100,338.27 = 38,819.30/x
  3. Step 3: Cross multiply
    66,886.02x = 100,338.27 × 38,819.30
  4. Step 4: Simplify right side
    66,886.02x = 3,895,060,902.92
  5. Step 5: Solve for x
    x = 3,895,060,902.92/66,886.02
  6. Step 6: Final answer
    x = 58,234.31

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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.