Home / 55,155.60-82,717.20-21,864.60

Finding the Fourth Proportional to 55,155.60, 82,717.20 and 21,864.60

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Solution

The fourth proportional to 55,155.60, 82,717.20 and 21,864.60 is: 32,790.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,155.60 : 82,717.20 = 21,864.60 : x
  2. Step 2: Convert to fraction form
    55,155.60/82,717.20 = 21,864.60/x
  3. Step 3: Cross multiply
    55,155.60x = 82,717.20 × 21,864.60
  4. Step 4: Simplify right side
    55,155.60x = 1,808,578,491.12
  5. Step 5: Solve for x
    x = 1,808,578,491.12/55,155.60
  6. Step 6: Final answer
    x = 32,790.48

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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.