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Finding the Fourth Proportional to 73,410.40, 101,306.40 and 39,876.40

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Solution

The fourth proportional to 73,410.40, 101,306.40 and 39,876.40 is: 55,029.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,410.40 : 101,306.40 = 39,876.40 : x
  2. Step 2: Convert to fraction form
    73,410.40/101,306.40 = 39,876.40/x
  3. Step 3: Cross multiply
    73,410.40x = 101,306.40 × 39,876.40
  4. Step 4: Simplify right side
    73,410.40x = 4,039,734,528.96
  5. Step 5: Solve for x
    x = 4,039,734,528.96/73,410.40
  6. Step 6: Final answer
    x = 55,029.46

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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.