Home / 90,340.54-135,510.39-27,160.38

Finding the Fourth Proportional to 90,340.54, 135,510.39 and 27,160.38

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Solution

The fourth proportional to 90,340.54, 135,510.39 and 27,160.38 is: 40,740.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,340.54 : 135,510.39 = 27,160.38 : x
  2. Step 2: Convert to fraction form
    90,340.54/135,510.39 = 27,160.38/x
  3. Step 3: Cross multiply
    90,340.54x = 135,510.39 × 27,160.38
  4. Step 4: Simplify right side
    90,340.54x = 3,680,513,686.35
  5. Step 5: Solve for x
    x = 3,680,513,686.35/90,340.54
  6. Step 6: Final answer
    x = 40,740.44

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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.