Home / 89,339.59-123,346.33-55,384.37

Finding the Fourth Proportional to 89,339.59, 123,346.33 and 55,384.37

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Solution

The fourth proportional to 89,339.59, 123,346.33 and 55,384.37 is: 76,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,339.59 : 123,346.33 = 55,384.37 : x
  2. Step 2: Convert to fraction form
    89,339.59/123,346.33 = 55,384.37/x
  3. Step 3: Cross multiply
    89,339.59x = 123,346.33 × 55,384.37
  4. Step 4: Simplify right side
    89,339.59x = 6,831,458,778.86
  5. Step 5: Solve for x
    x = 6,831,458,778.86/89,339.59
  6. Step 6: Final answer
    x = 76,466.20

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1.5x scale

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.