Home / 67,530.32-101,306.42-20,783.19

Finding the Fourth Proportional to 67,530.32, 101,306.42 and 20,783.19

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Solution

The fourth proportional to 67,530.32, 101,306.42 and 20,783.19 is: 31,178.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,530.32 : 101,306.42 = 20,783.19 : x
  2. Step 2: Convert to fraction form
    67,530.32/101,306.42 = 20,783.19/x
  3. Step 3: Cross multiply
    67,530.32x = 101,306.42 × 20,783.19
  4. Step 4: Simplify right side
    67,530.32x = 2,105,470,575.08
  5. Step 5: Solve for x
    x = 2,105,470,575.08/67,530.32
  6. Step 6: Final answer
    x = 31,178.15

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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.