Home / 78,605.28-108,473.22-42,794.51

Finding the Fourth Proportional to 78,605.28, 108,473.22 and 42,794.51

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Solution

The fourth proportional to 78,605.28, 108,473.22 and 42,794.51 is: 59,055.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,605.28 : 108,473.22 = 42,794.51 : x
  2. Step 2: Convert to fraction form
    78,605.28/108,473.22 = 42,794.51/x
  3. Step 3: Cross multiply
    78,605.28x = 108,473.22 × 42,794.51
  4. Step 4: Simplify right side
    78,605.28x = 4,642,057,755.66
  5. Step 5: Solve for x
    x = 4,642,057,755.66/78,605.28
  6. Step 6: Final answer
    x = 59,055.29

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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.