Home / 78,104.76-117,196.02-57,498.36

Finding the Fourth Proportional to 78,104.76, 117,196.02 and 57,498.36

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Solution

The fourth proportional to 78,104.76, 117,196.02 and 57,498.36 is: 86,276.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,104.76 : 117,196.02 = 57,498.36 : x
  2. Step 2: Convert to fraction form
    78,104.76/117,196.02 = 57,498.36/x
  3. Step 3: Cross multiply
    78,104.76x = 117,196.02 × 57,498.36
  4. Step 4: Simplify right side
    78,104.76x = 6,738,578,948.53
  5. Step 5: Solve for x
    x = 6,738,578,948.53/78,104.76
  6. Step 6: Final answer
    x = 86,276.16

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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.