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Finding the Fourth Proportional to 69,707.58, 105,086.58 and 65,197.50

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Solution

The fourth proportional to 69,707.58, 105,086.58 and 65,197.50 is: 98,287.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,707.58 : 105,086.58 = 65,197.50 : x
  2. Step 2: Convert to fraction form
    69,707.58/105,086.58 = 65,197.50/x
  3. Step 3: Cross multiply
    69,707.58x = 105,086.58 × 65,197.50
  4. Step 4: Simplify right side
    69,707.58x = 6,851,382,299.55
  5. Step 5: Solve for x
    x = 6,851,382,299.55/69,707.58
  6. Step 6: Final answer
    x = 98,287.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.