Home / 66,900.03-92,321.28-38,605.11

Finding the Fourth Proportional to 66,900.03, 92,321.28 and 38,605.11

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Solution

The fourth proportional to 66,900.03, 92,321.28 and 38,605.11 is: 53,274.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,900.03 : 92,321.28 = 38,605.11 : x
  2. Step 2: Convert to fraction form
    66,900.03/92,321.28 = 38,605.11/x
  3. Step 3: Cross multiply
    66,900.03x = 92,321.28 × 38,605.11
  4. Step 4: Simplify right side
    66,900.03x = 3,564,073,169.74
  5. Step 5: Solve for x
    x = 3,564,073,169.74/66,900.03
  6. Step 6: Final answer
    x = 53,274.61

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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.