Home / 54,555.15-75,286.23-30,681.90

Finding the Fourth Proportional to 54,555.15, 75,286.23 and 30,681.90

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Solution

The fourth proportional to 54,555.15, 75,286.23 and 30,681.90 is: 42,341.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,555.15 : 75,286.23 = 30,681.90 : x
  2. Step 2: Convert to fraction form
    54,555.15/75,286.23 = 30,681.90/x
  3. Step 3: Cross multiply
    54,555.15x = 75,286.23 × 30,681.90
  4. Step 4: Simplify right side
    54,555.15x = 2,309,924,580.24
  5. Step 5: Solve for x
    x = 2,309,924,580.24/54,555.15
  6. Step 6: Final answer
    x = 42,341.09

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Double scale
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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.