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Finding the Fourth Proportional to 60,017.76, 90,037.58 and 20,578.86

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Solution

The fourth proportional to 60,017.76, 90,037.58 and 20,578.86 is: 30,872.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,017.76 : 90,037.58 = 20,578.86 : x
  2. Step 2: Convert to fraction form
    60,017.76/90,037.58 = 20,578.86/x
  3. Step 3: Cross multiply
    60,017.76x = 90,037.58 × 20,578.86
  4. Step 4: Simplify right side
    60,017.76x = 1,852,870,753.56
  5. Step 5: Solve for x
    x = 1,852,870,753.56/60,017.76
  6. Step 6: Final answer
    x = 30,872.04

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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.