Home / 42,754.97-64,133.55-20,260.37

Finding the Fourth Proportional to 42,754.97, 64,133.55 and 20,260.37

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Solution

The fourth proportional to 42,754.97, 64,133.55 and 20,260.37 is: 30,391.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,754.97 : 64,133.55 = 20,260.37 : x
  2. Step 2: Convert to fraction form
    42,754.97/64,133.55 = 20,260.37/x
  3. Step 3: Cross multiply
    42,754.97x = 64,133.55 × 20,260.37
  4. Step 4: Simplify right side
    42,754.97x = 1,299,369,131.75
  5. Step 5: Solve for x
    x = 1,299,369,131.75/42,754.97
  6. Step 6: Final answer
    x = 30,391.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.