Home / 48,116.80-72,126.60-21,840.40

Finding the Fourth Proportional to 48,116.80, 72,126.60 and 21,840.40

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Solution

The fourth proportional to 48,116.80, 72,126.60 and 21,840.40 is: 32,738.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,116.80 : 72,126.60 = 21,840.40 : x
  2. Step 2: Convert to fraction form
    48,116.80/72,126.60 = 21,840.40/x
  3. Step 3: Cross multiply
    48,116.80x = 72,126.60 × 21,840.40
  4. Step 4: Simplify right side
    48,116.80x = 1,575,273,794.64
  5. Step 5: Solve for x
    x = 1,575,273,794.64/48,116.80
  6. Step 6: Final answer
    x = 32,738.54

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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.