Home / 66,867.12-92,253.84-38,166.20

Finding the Fourth Proportional to 66,867.12, 92,253.84 and 38,166.20

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Solution

The fourth proportional to 66,867.12, 92,253.84 and 38,166.20 is: 52,656.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,867.12 : 92,253.84 = 38,166.20 : x
  2. Step 2: Convert to fraction form
    66,867.12/92,253.84 = 38,166.20/x
  3. Step 3: Cross multiply
    66,867.12x = 92,253.84 × 38,166.20
  4. Step 4: Simplify right side
    66,867.12x = 3,520,978,508.21
  5. Step 5: Solve for x
    x = 3,520,978,508.21/66,867.12
  6. Step 6: Final answer
    x = 52,656.35

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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.