Home / 78,962.48-118,395.12-26,357.84

Finding the Fourth Proportional to 78,962.48, 118,395.12 and 26,357.84

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Solution

The fourth proportional to 78,962.48, 118,395.12 and 26,357.84 is: 39,520.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,962.48 : 118,395.12 = 26,357.84 : x
  2. Step 2: Convert to fraction form
    78,962.48/118,395.12 = 26,357.84/x
  3. Step 3: Cross multiply
    78,962.48x = 118,395.12 × 26,357.84
  4. Step 4: Simplify right side
    78,962.48x = 3,120,639,629.74
  5. Step 5: Solve for x
    x = 3,120,639,629.74/78,962.48
  6. Step 6: Final answer
    x = 39,520.54

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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.