Home / 89,311.57-123,243.19-49,018.93

Finding the Fourth Proportional to 89,311.57, 123,243.19 and 49,018.93

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Solution

The fourth proportional to 89,311.57, 123,243.19 and 49,018.93 is: 67,642.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,311.57 : 123,243.19 = 49,018.93 : x
  2. Step 2: Convert to fraction form
    89,311.57/123,243.19 = 49,018.93/x
  3. Step 3: Cross multiply
    89,311.57x = 123,243.19 × 49,018.93
  4. Step 4: Simplify right side
    89,311.57x = 6,041,249,303.59
  5. Step 5: Solve for x
    x = 6,041,249,303.59/89,311.57
  6. Step 6: Final answer
    x = 67,642.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.