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Finding the Fourth Proportional to 64,272.90, 88,695.63 and 35,979.60

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Solution

The fourth proportional to 64,272.90, 88,695.63 and 35,979.60 is: 49,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,272.90 : 88,695.63 = 35,979.60 : x
  2. Step 2: Convert to fraction form
    64,272.90/88,695.63 = 35,979.60/x
  3. Step 3: Cross multiply
    64,272.90x = 88,695.63 × 35,979.60
  4. Step 4: Simplify right side
    64,272.90x = 3,191,233,289.15
  5. Step 5: Solve for x
    x = 3,191,233,289.15/64,272.90
  6. Step 6: Final answer
    x = 49,651.30

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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.