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Finding the Fourth Proportional to 68,340.60, 94,170.06 and 50,407.20

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Solution

The fourth proportional to 68,340.60, 94,170.06 and 50,407.20 is: 69,458.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,340.60 : 94,170.06 = 50,407.20 : x
  2. Step 2: Convert to fraction form
    68,340.60/94,170.06 = 50,407.20/x
  3. Step 3: Cross multiply
    68,340.60x = 94,170.06 × 50,407.20
  4. Step 4: Simplify right side
    68,340.60x = 4,746,849,048.43
  5. Step 5: Solve for x
    x = 4,746,849,048.43/68,340.60
  6. Step 6: Final answer
    x = 69,458.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.