Home / 42,376.51-63,565.11-10,786.60

Finding the Fourth Proportional to 42,376.51, 63,565.11 and 10,786.60

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Solution

The fourth proportional to 42,376.51, 63,565.11 and 10,786.60 is: 16,179.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,376.51 : 63,565.11 = 10,786.60 : x
  2. Step 2: Convert to fraction form
    42,376.51/63,565.11 = 10,786.60/x
  3. Step 3: Cross multiply
    42,376.51x = 63,565.11 × 10,786.60
  4. Step 4: Simplify right side
    42,376.51x = 685,651,415.53
  5. Step 5: Solve for x
    x = 685,651,415.53/42,376.51
  6. Step 6: Final answer
    x = 16,179.99

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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.