Home / 54,990.38-82,337.95-28,639.77

Finding the Fourth Proportional to 54,990.38, 82,337.95 and 28,639.77

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Solution

The fourth proportional to 54,990.38, 82,337.95 and 28,639.77 is: 42,882.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,990.38 : 82,337.95 = 28,639.77 : x
  2. Step 2: Convert to fraction form
    54,990.38/82,337.95 = 28,639.77/x
  3. Step 3: Cross multiply
    54,990.38x = 82,337.95 × 28,639.77
  4. Step 4: Simplify right side
    54,990.38x = 2,358,139,950.27
  5. Step 5: Solve for x
    x = 2,358,139,950.27/54,990.38
  6. Step 6: Final answer
    x = 42,882.77

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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.