Home / 98,389.52-135,776.41-55,368.85

Finding the Fourth Proportional to 98,389.52, 135,776.41 and 55,368.85

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Solution

The fourth proportional to 98,389.52, 135,776.41 and 55,368.85 is: 76,408.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,389.52 : 135,776.41 = 55,368.85 : x
  2. Step 2: Convert to fraction form
    98,389.52/135,776.41 = 55,368.85/x
  3. Step 3: Cross multiply
    98,389.52x = 135,776.41 × 55,368.85
  4. Step 4: Simplify right side
    98,389.52x = 7,517,783,678.83
  5. Step 5: Solve for x
    x = 7,517,783,678.83/98,389.52
  6. Step 6: Final answer
    x = 76,408.38

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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.