Home / 60,150.78-90,226.35-20,707.38

Finding the Fourth Proportional to 60,150.78, 90,226.35 and 20,707.38

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Solution

The fourth proportional to 60,150.78, 90,226.35 and 20,707.38 is: 31,061.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,150.78 : 90,226.35 = 20,707.38 : x
  2. Step 2: Convert to fraction form
    60,150.78/90,226.35 = 20,707.38/x
  3. Step 3: Cross multiply
    60,150.78x = 90,226.35 × 20,707.38
  4. Step 4: Simplify right side
    60,150.78x = 1,868,351,315.46
  5. Step 5: Solve for x
    x = 1,868,351,315.46/60,150.78
  6. Step 6: Final answer
    x = 31,061.13

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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.