Home / 78,264.45-117,319.50-50,104.38

Finding the Fourth Proportional to 78,264.45, 117,319.50 and 50,104.38

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Solution

The fourth proportional to 78,264.45, 117,319.50 and 50,104.38 is: 75,107.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,264.45 : 117,319.50 = 50,104.38 : x
  2. Step 2: Convert to fraction form
    78,264.45/117,319.50 = 50,104.38/x
  3. Step 3: Cross multiply
    78,264.45x = 117,319.50 × 50,104.38
  4. Step 4: Simplify right side
    78,264.45x = 5,878,220,809.41
  5. Step 5: Solve for x
    x = 5,878,220,809.41/78,264.45
  6. Step 6: Final answer
    x = 75,107.16

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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.