Home / 72,004.04-108,001.20-19,418.84

Finding the Fourth Proportional to 72,004.04, 108,001.20 and 19,418.84

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Solution

The fourth proportional to 72,004.04, 108,001.20 and 19,418.84 is: 29,126.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,004.04 : 108,001.20 = 19,418.84 : x
  2. Step 2: Convert to fraction form
    72,004.04/108,001.20 = 19,418.84/x
  3. Step 3: Cross multiply
    72,004.04x = 108,001.20 × 19,418.84
  4. Step 4: Simplify right side
    72,004.04x = 2,097,258,022.61
  5. Step 5: Solve for x
    x = 2,097,258,022.61/72,004.04
  6. Step 6: Final answer
    x = 29,126.95

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1.5x scale

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.