Home / 54,679.02-75,457.07-30,805.70

Finding the Fourth Proportional to 54,679.02, 75,457.07 and 30,805.70

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Solution

The fourth proportional to 54,679.02, 75,457.07 and 30,805.70 is: 42,511.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,679.02 : 75,457.07 = 30,805.70 : x
  2. Step 2: Convert to fraction form
    54,679.02/75,457.07 = 30,805.70/x
  3. Step 3: Cross multiply
    54,679.02x = 75,457.07 × 30,805.70
  4. Step 4: Simplify right side
    54,679.02x = 2,324,507,329.99
  5. Step 5: Solve for x
    x = 2,324,507,329.99/54,679.02
  6. Step 6: Final answer
    x = 42,511.87

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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.