Home / 54,368.08-81,532.56-18,819.74

Finding the Fourth Proportional to 54,368.08, 81,532.56 and 18,819.74

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Solution

The fourth proportional to 54,368.08, 81,532.56 and 18,819.74 is: 28,222.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,368.08 : 81,532.56 = 18,819.74 : x
  2. Step 2: Convert to fraction form
    54,368.08/81,532.56 = 18,819.74/x
  3. Step 3: Cross multiply
    54,368.08x = 81,532.56 × 18,819.74
  4. Step 4: Simplify right side
    54,368.08x = 1,534,421,580.73
  5. Step 5: Solve for x
    x = 1,534,421,580.73/54,368.08
  6. Step 6: Final answer
    x = 28,222.84

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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.