Home / 40,045.20-55,266.33-34,398.56

Finding the Fourth Proportional to 40,045.20, 55,266.33 and 34,398.56

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Solution

The fourth proportional to 40,045.20, 55,266.33 and 34,398.56 is: 47,473.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,045.20 : 55,266.33 = 34,398.56 : x
  2. Step 2: Convert to fraction form
    40,045.20/55,266.33 = 34,398.56/x
  3. Step 3: Cross multiply
    40,045.20x = 55,266.33 × 34,398.56
  4. Step 4: Simplify right side
    40,045.20x = 1,901,081,892.15
  5. Step 5: Solve for x
    x = 1,901,081,892.15/40,045.20
  6. Step 6: Final answer
    x = 47,473.40

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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.