Home / 78,319.23-117,362.20-44,989.35

Finding the Fourth Proportional to 78,319.23, 117,362.20 and 44,989.35

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Solution

The fourth proportional to 78,319.23, 117,362.20 and 44,989.35 is: 67,417.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,319.23 : 117,362.20 = 44,989.35 : x
  2. Step 2: Convert to fraction form
    78,319.23/117,362.20 = 44,989.35/x
  3. Step 3: Cross multiply
    78,319.23x = 117,362.20 × 44,989.35
  4. Step 4: Simplify right side
    78,319.23x = 5,280,049,092.57
  5. Step 5: Solve for x
    x = 5,280,049,092.57/78,319.23
  6. Step 6: Final answer
    x = 67,417.02

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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.