Home / 60,072.68-90,135.38-28,505.57

Finding the Fourth Proportional to 60,072.68, 90,135.38 and 28,505.57

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Solution

The fourth proportional to 60,072.68, 90,135.38 and 28,505.57 is: 42,770.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,072.68 : 90,135.38 = 28,505.57 : x
  2. Step 2: Convert to fraction form
    60,072.68/90,135.38 = 28,505.57/x
  3. Step 3: Cross multiply
    60,072.68x = 90,135.38 × 28,505.57
  4. Step 4: Simplify right side
    60,072.68x = 2,569,360,004.65
  5. Step 5: Solve for x
    x = 2,569,360,004.65/60,072.68
  6. Step 6: Final answer
    x = 42,770.86

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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.