Home / 72,071.04-108,078.96-34,620.40

Finding the Fourth Proportional to 72,071.04, 108,078.96 and 34,620.40

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Solution

The fourth proportional to 72,071.04, 108,078.96 and 34,620.40 is: 51,917.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,071.04 : 108,078.96 = 34,620.40 : x
  2. Step 2: Convert to fraction form
    72,071.04/108,078.96 = 34,620.40/x
  3. Step 3: Cross multiply
    72,071.04x = 108,078.96 × 34,620.40
  4. Step 4: Simplify right side
    72,071.04x = 3,741,736,826.78
  5. Step 5: Solve for x
    x = 3,741,736,826.78/72,071.04
  6. Step 6: Final answer
    x = 51,917.34

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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.