Home / 78,677.34-117,901.53-48,627.42

Finding the Fourth Proportional to 78,677.34, 117,901.53 and 48,627.42

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Solution

The fourth proportional to 78,677.34, 117,901.53 and 48,627.42 is: 72,870.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,677.34 : 117,901.53 = 48,627.42 : x
  2. Step 2: Convert to fraction form
    78,677.34/117,901.53 = 48,627.42/x
  3. Step 3: Cross multiply
    78,677.34x = 117,901.53 × 48,627.42
  4. Step 4: Simplify right side
    78,677.34x = 5,733,247,217.95
  5. Step 5: Solve for x
    x = 5,733,247,217.95/78,677.34
  6. Step 6: Final answer
    x = 72,870.37

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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.