Home / 42,867.80-64,400.24-30,246.60

Finding the Fourth Proportional to 42,867.80, 64,400.24 and 30,246.60

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Solution

The fourth proportional to 42,867.80, 64,400.24 and 30,246.60 is: 45,439.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,867.80 : 64,400.24 = 30,246.60 : x
  2. Step 2: Convert to fraction form
    42,867.80/64,400.24 = 30,246.60/x
  3. Step 3: Cross multiply
    42,867.80x = 64,400.24 × 30,246.60
  4. Step 4: Simplify right side
    42,867.80x = 1,947,888,374.80
  5. Step 5: Solve for x
    x = 1,947,888,374.80/42,867.80
  6. Step 6: Final answer
    x = 45,439.43

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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.