Home / 78,936.68-118,302.96-59,059.28

Finding the Fourth Proportional to 78,936.68, 118,302.96 and 59,059.28

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Solution

The fourth proportional to 78,936.68, 118,302.96 and 59,059.28 is: 88,512.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,936.68 : 118,302.96 = 59,059.28 : x
  2. Step 2: Convert to fraction form
    78,936.68/118,302.96 = 59,059.28/x
  3. Step 3: Cross multiply
    78,936.68x = 118,302.96 × 59,059.28
  4. Step 4: Simplify right side
    78,936.68x = 6,986,887,639.47
  5. Step 5: Solve for x
    x = 6,986,887,639.47/78,936.68
  6. Step 6: Final answer
    x = 88,512.56

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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.