Home / 76,326.05-105,324.67-42,331.32

Finding the Fourth Proportional to 76,326.05, 105,324.67 and 42,331.32

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Solution

The fourth proportional to 76,326.05, 105,324.67 and 42,331.32 is: 58,414.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,326.05 : 105,324.67 = 42,331.32 : x
  2. Step 2: Convert to fraction form
    76,326.05/105,324.67 = 42,331.32/x
  3. Step 3: Cross multiply
    76,326.05x = 105,324.67 × 42,331.32
  4. Step 4: Simplify right side
    76,326.05x = 4,458,532,309.66
  5. Step 5: Solve for x
    x = 4,458,532,309.66/76,326.05
  6. Step 6: Final answer
    x = 58,414.29

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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.