Home / 74,956.32-112,450.68-28,209.06

Finding the Fourth Proportional to 74,956.32, 112,450.68 and 28,209.06

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Solution

The fourth proportional to 74,956.32, 112,450.68 and 28,209.06 is: 42,319.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,956.32 : 112,450.68 = 28,209.06 : x
  2. Step 2: Convert to fraction form
    74,956.32/112,450.68 = 28,209.06/x
  3. Step 3: Cross multiply
    74,956.32x = 112,450.68 × 28,209.06
  4. Step 4: Simplify right side
    74,956.32x = 3,172,127,979.16
  5. Step 5: Solve for x
    x = 3,172,127,979.16/74,956.32
  6. Step 6: Final answer
    x = 42,319.69

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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.