Home / 67,399.02-101,117.97-20,658.78

Finding the Fourth Proportional to 67,399.02, 101,117.97 and 20,658.78

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Solution

The fourth proportional to 67,399.02, 101,117.97 and 20,658.78 is: 30,994.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,399.02 : 101,117.97 = 20,658.78 : x
  2. Step 2: Convert to fraction form
    67,399.02/101,117.97 = 20,658.78/x
  3. Step 3: Cross multiply
    67,399.02x = 101,117.97 × 20,658.78
  4. Step 4: Simplify right side
    67,399.02x = 2,088,973,896.28
  5. Step 5: Solve for x
    x = 2,088,973,896.28/67,399.02
  6. Step 6: Final answer
    x = 30,994.13

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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.