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Finding the Fourth Proportional to 66,671.96, 92,030.48 and 38,388.92

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Solution

The fourth proportional to 66,671.96, 92,030.48 and 38,388.92 is: 52,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,671.96 : 92,030.48 = 38,388.92 : x
  2. Step 2: Convert to fraction form
    66,671.96/92,030.48 = 38,388.92/x
  3. Step 3: Cross multiply
    66,671.96x = 92,030.48 × 38,388.92
  4. Step 4: Simplify right side
    66,671.96x = 3,532,950,734.28
  5. Step 5: Solve for x
    x = 3,532,950,734.28/66,671.96
  6. Step 6: Final answer
    x = 52,990.05

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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.