Home / 78,089.22-117,119.04-38,068.02

Finding the Fourth Proportional to 78,089.22, 117,119.04 and 38,068.02

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Solution

The fourth proportional to 78,089.22, 117,119.04 and 38,068.02 is: 57,094.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,089.22 : 117,119.04 = 38,068.02 : x
  2. Step 2: Convert to fraction form
    78,089.22/117,119.04 = 38,068.02/x
  3. Step 3: Cross multiply
    78,089.22x = 117,119.04 × 38,068.02
  4. Step 4: Simplify right side
    78,089.22x = 4,458,489,957.10
  5. Step 5: Solve for x
    x = 4,458,489,957.10/78,089.22
  6. Step 6: Final answer
    x = 57,094.82

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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.