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Finding the Fourth Proportional to 63,946.60, 88,218.30 and 60,982

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Solution

The fourth proportional to 63,946.60, 88,218.30 and 60,982 is: 84,128.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,946.60 : 88,218.30 = 60,982 : x
  2. Step 2: Convert to fraction form
    63,946.60/88,218.30 = 60,982/x
  3. Step 3: Cross multiply
    63,946.60x = 88,218.30 × 60,982
  4. Step 4: Simplify right side
    63,946.60x = 5,379,728,370.60
  5. Step 5: Solve for x
    x = 5,379,728,370.60/63,946.60
  6. Step 6: Final answer
    x = 84,128.45

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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.