Home / 67,478.62-93,145.35-40,622.38

Finding the Fourth Proportional to 67,478.62, 93,145.35 and 40,622.38

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Solution

The fourth proportional to 67,478.62, 93,145.35 and 40,622.38 is: 56,073.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,478.62 : 93,145.35 = 40,622.38 : x
  2. Step 2: Convert to fraction form
    67,478.62/93,145.35 = 40,622.38/x
  3. Step 3: Cross multiply
    67,478.62x = 93,145.35 × 40,622.38
  4. Step 4: Simplify right side
    67,478.62x = 3,783,785,802.93
  5. Step 5: Solve for x
    x = 3,783,785,802.93/67,478.62
  6. Step 6: Final answer
    x = 56,073.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.