Home / 90,394.65-135,618.50-40,463.64

Finding the Fourth Proportional to 90,394.65, 135,618.50 and 40,463.64

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Solution

The fourth proportional to 90,394.65, 135,618.50 and 40,463.64 is: 60,707.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,394.65 : 135,618.50 = 40,463.64 : x
  2. Step 2: Convert to fraction form
    90,394.65/135,618.50 = 40,463.64/x
  3. Step 3: Cross multiply
    90,394.65x = 135,618.50 × 40,463.64
  4. Step 4: Simplify right side
    90,394.65x = 5,487,617,959.02
  5. Step 5: Solve for x
    x = 5,487,617,959.02/90,394.65
  6. Step 6: Final answer
    x = 60,707.33

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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.