Home / 78,316.20-117,522.45-33,943.32

Finding the Fourth Proportional to 78,316.20, 117,522.45 and 33,943.32

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Solution

The fourth proportional to 78,316.20, 117,522.45 and 33,943.32 is: 50,935.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,316.20 : 117,522.45 = 33,943.32 : x
  2. Step 2: Convert to fraction form
    78,316.20/117,522.45 = 33,943.32/x
  3. Step 3: Cross multiply
    78,316.20x = 117,522.45 × 33,943.32
  4. Step 4: Simplify right side
    78,316.20x = 3,989,102,127.53
  5. Step 5: Solve for x
    x = 3,989,102,127.53/78,316.20
  6. Step 6: Final answer
    x = 50,935.85

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1.5x scale

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.