Home / 54,769.34-75,581.11-30,903.78

Finding the Fourth Proportional to 54,769.34, 75,581.11 and 30,903.78

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Solution

The fourth proportional to 54,769.34, 75,581.11 and 30,903.78 is: 42,646.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,769.34 : 75,581.11 = 30,903.78 : x
  2. Step 2: Convert to fraction form
    54,769.34/75,581.11 = 30,903.78/x
  3. Step 3: Cross multiply
    54,769.34x = 75,581.11 × 30,903.78
  4. Step 4: Simplify right side
    54,769.34x = 2,335,741,995.60
  5. Step 5: Solve for x
    x = 2,335,741,995.60/54,769.34
  6. Step 6: Final answer
    x = 42,646.89

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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.