Home / 78,044.67-117,019.60-30,602.93

Finding the Fourth Proportional to 78,044.67, 117,019.60 and 30,602.93

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Solution

The fourth proportional to 78,044.67, 117,019.60 and 30,602.93 is: 45,885.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,044.67 : 117,019.60 = 30,602.93 : x
  2. Step 2: Convert to fraction form
    78,044.67/117,019.60 = 30,602.93/x
  3. Step 3: Cross multiply
    78,044.67x = 117,019.60 × 30,602.93
  4. Step 4: Simplify right side
    78,044.67x = 3,581,142,137.96
  5. Step 5: Solve for x
    x = 3,581,142,137.96/78,044.67
  6. Step 6: Final answer
    x = 45,885.80

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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.