Home / 72,713.15-109,072.14-20,118.23

Finding the Fourth Proportional to 72,713.15, 109,072.14 and 20,118.23

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Solution

The fourth proportional to 72,713.15, 109,072.14 and 20,118.23 is: 30,178.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,713.15 : 109,072.14 = 20,118.23 : x
  2. Step 2: Convert to fraction form
    72,713.15/109,072.14 = 20,118.23/x
  3. Step 3: Cross multiply
    72,713.15x = 109,072.14 × 20,118.23
  4. Step 4: Simplify right side
    72,713.15x = 2,194,337,853.75
  5. Step 5: Solve for x
    x = 2,194,337,853.75/72,713.15
  6. Step 6: Final answer
    x = 30,178.01

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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.