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Finding the Fourth Proportional to 67,848.60, 101,772.90 and 28,392.60

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Solution

The fourth proportional to 67,848.60, 101,772.90 and 28,392.60 is: 42,588.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,848.60 : 101,772.90 = 28,392.60 : x
  2. Step 2: Convert to fraction form
    67,848.60/101,772.90 = 28,392.60/x
  3. Step 3: Cross multiply
    67,848.60x = 101,772.90 × 28,392.60
  4. Step 4: Simplify right side
    67,848.60x = 2,889,597,240.54
  5. Step 5: Solve for x
    x = 2,889,597,240.54/67,848.60
  6. Step 6: Final answer
    x = 42,588.90

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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.