Home / 48,643.40-72,993.23-20,561.63

Finding the Fourth Proportional to 48,643.40, 72,993.23 and 20,561.63

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Solution

The fourth proportional to 48,643.40, 72,993.23 and 20,561.63 is: 30,854.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,643.40 : 72,993.23 = 20,561.63 : x
  2. Step 2: Convert to fraction form
    48,643.40/72,993.23 = 20,561.63/x
  3. Step 3: Cross multiply
    48,643.40x = 72,993.23 × 20,561.63
  4. Step 4: Simplify right side
    48,643.40x = 1,500,859,684.96
  5. Step 5: Solve for x
    x = 1,500,859,684.96/48,643.40
  6. Step 6: Final answer
    x = 30,854.34

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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.