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Finding the Fourth Proportional to 64,296.40, 88,728.60 and 36,000.40

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Solution

The fourth proportional to 64,296.40, 88,728.60 and 36,000.40 is: 49,680.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,296.40 : 88,728.60 = 36,000.40 : x
  2. Step 2: Convert to fraction form
    64,296.40/88,728.60 = 36,000.40/x
  3. Step 3: Cross multiply
    64,296.40x = 88,728.60 × 36,000.40
  4. Step 4: Simplify right side
    64,296.40x = 3,194,265,091.44
  5. Step 5: Solve for x
    x = 3,194,265,091.44/64,296.40
  6. Step 6: Final answer
    x = 49,680.31

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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.