Home / 42,426.12-63,630.84-40,318.38

Finding the Fourth Proportional to 42,426.12, 63,630.84 and 40,318.38

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Solution

The fourth proportional to 42,426.12, 63,630.84 and 40,318.38 is: 60,469.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,426.12 : 63,630.84 = 40,318.38 : x
  2. Step 2: Convert to fraction form
    42,426.12/63,630.84 = 40,318.38/x
  3. Step 3: Cross multiply
    42,426.12x = 63,630.84 × 40,318.38
  4. Step 4: Simplify right side
    42,426.12x = 2,565,492,386.84
  5. Step 5: Solve for x
    x = 2,565,492,386.84/42,426.12
  6. Step 6: Final answer
    x = 60,469.64

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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.