Home / 78,825.24-118,237.08-36,118.58

Finding the Fourth Proportional to 78,825.24, 118,237.08 and 36,118.58

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Solution

The fourth proportional to 78,825.24, 118,237.08 and 36,118.58 is: 54,177.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,825.24 : 118,237.08 = 36,118.58 : x
  2. Step 2: Convert to fraction form
    78,825.24/118,237.08 = 36,118.58/x
  3. Step 3: Cross multiply
    78,825.24x = 118,237.08 × 36,118.58
  4. Step 4: Simplify right side
    78,825.24x = 4,270,554,841.76
  5. Step 5: Solve for x
    x = 4,270,554,841.76/78,825.24
  6. Step 6: Final answer
    x = 54,177.51

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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.