Home / 78,242.36-117,367.58-59,551.61

Finding the Fourth Proportional to 78,242.36, 117,367.58 and 59,551.61

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Solution

The fourth proportional to 78,242.36, 117,367.58 and 59,551.61 is: 89,330.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,242.36 : 117,367.58 = 59,551.61 : x
  2. Step 2: Convert to fraction form
    78,242.36/117,367.58 = 59,551.61/x
  3. Step 3: Cross multiply
    78,242.36x = 117,367.58 × 59,551.61
  4. Step 4: Simplify right side
    78,242.36x = 6,989,427,912.84
  5. Step 5: Solve for x
    x = 6,989,427,912.84/78,242.36
  6. Step 6: Final answer
    x = 89,330.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.