Home / 56,989.06-78,639.60-33,115.39

Finding the Fourth Proportional to 56,989.06, 78,639.60 and 33,115.39

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Solution

The fourth proportional to 56,989.06, 78,639.60 and 33,115.39 is: 45,696.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,989.06 : 78,639.60 = 33,115.39 : x
  2. Step 2: Convert to fraction form
    56,989.06/78,639.60 = 33,115.39/x
  3. Step 3: Cross multiply
    56,989.06x = 78,639.60 × 33,115.39
  4. Step 4: Simplify right side
    56,989.06x = 2,604,181,023.44
  5. Step 5: Solve for x
    x = 2,604,181,023.44/56,989.06
  6. Step 6: Final answer
    x = 45,696.16

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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.