Home / 89,442.64-123,403.84-53,619.58

Finding the Fourth Proportional to 89,442.64, 123,403.84 and 53,619.58

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Solution

The fourth proportional to 89,442.64, 123,403.84 and 53,619.58 is: 73,978.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,442.64 : 123,403.84 = 53,619.58 : x
  2. Step 2: Convert to fraction form
    89,442.64/123,403.84 = 53,619.58/x
  3. Step 3: Cross multiply
    89,442.64x = 123,403.84 × 53,619.58
  4. Step 4: Simplify right side
    89,442.64x = 6,616,862,071.19
  5. Step 5: Solve for x
    x = 6,616,862,071.19/89,442.64
  6. Step 6: Final answer
    x = 73,978.83

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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.