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Finding the Fourth Proportional to 67,980.60, 93,787.04 and 50,118.08

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Solution

The fourth proportional to 67,980.60, 93,787.04 and 50,118.08 is: 69,143.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,980.60 : 93,787.04 = 50,118.08 : x
  2. Step 2: Convert to fraction form
    67,980.60/93,787.04 = 50,118.08/x
  3. Step 3: Cross multiply
    67,980.60x = 93,787.04 × 50,118.08
  4. Step 4: Simplify right side
    67,980.60x = 4,700,426,373.68
  5. Step 5: Solve for x
    x = 4,700,426,373.68/67,980.60
  6. Step 6: Final answer
    x = 69,143.64

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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.