Home / 109,017.12-163,554-49,824.48

Finding the Fourth Proportional to 109,017.12, 163,554 and 49,824.48

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Solution

The fourth proportional to 109,017.12, 163,554 and 49,824.48 is: 74,749.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,017.12 : 163,554 = 49,824.48 : x
  2. Step 2: Convert to fraction form
    109,017.12/163,554 = 49,824.48/x
  3. Step 3: Cross multiply
    109,017.12x = 163,554 × 49,824.48
  4. Step 4: Simplify right side
    109,017.12x = 8,148,993,001.92
  5. Step 5: Solve for x
    x = 8,148,993,001.92/109,017.12
  6. Step 6: Final answer
    x = 74,749.66

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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.