Home / 78,086.23-117,153.95-25,483.41

Finding the Fourth Proportional to 78,086.23, 117,153.95 and 25,483.41

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Solution

The fourth proportional to 78,086.23, 117,153.95 and 25,483.41 is: 38,233.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,086.23 : 117,153.95 = 25,483.41 : x
  2. Step 2: Convert to fraction form
    78,086.23/117,153.95 = 25,483.41/x
  3. Step 3: Cross multiply
    78,086.23x = 117,153.95 × 25,483.41
  4. Step 4: Simplify right side
    78,086.23x = 2,985,482,013.55
  5. Step 5: Solve for x
    x = 2,985,482,013.55/78,086.23
  6. Step 6: Final answer
    x = 38,233.14

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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.