Home / 48,261.12-72,399.36-20,559.36

Finding the Fourth Proportional to 48,261.12, 72,399.36 and 20,559.36

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Solution

The fourth proportional to 48,261.12, 72,399.36 and 20,559.36 is: 30,842.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,261.12 : 72,399.36 = 20,559.36 : x
  2. Step 2: Convert to fraction form
    48,261.12/72,399.36 = 20,559.36/x
  3. Step 3: Cross multiply
    48,261.12x = 72,399.36 × 20,559.36
  4. Step 4: Simplify right side
    48,261.12x = 1,488,484,506.01
  5. Step 5: Solve for x
    x = 1,488,484,506.01/48,261.12
  6. Step 6: Final answer
    x = 30,842.31

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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.