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Finding the Fourth Proportional to 92,219.40, 138,304.80 and 29,039.40

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Solution

The fourth proportional to 92,219.40, 138,304.80 and 29,039.40 is: 43,551.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,219.40 : 138,304.80 = 29,039.40 : x
  2. Step 2: Convert to fraction form
    92,219.40/138,304.80 = 29,039.40/x
  3. Step 3: Cross multiply
    92,219.40x = 138,304.80 × 29,039.40
  4. Step 4: Simplify right side
    92,219.40x = 4,016,288,409.12
  5. Step 5: Solve for x
    x = 4,016,288,409.12/92,219.40
  6. Step 6: Final answer
    x = 43,551.45

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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.