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Finding the Fourth Proportional to 70,900.10, 97,766.88 and 63,759.54

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Solution

The fourth proportional to 70,900.10, 97,766.88 and 63,759.54 is: 87,920.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,900.10 : 97,766.88 = 63,759.54 : x
  2. Step 2: Convert to fraction form
    70,900.10/97,766.88 = 63,759.54/x
  3. Step 3: Cross multiply
    70,900.10x = 97,766.88 × 63,759.54
  4. Step 4: Simplify right side
    70,900.10x = 6,233,571,296.04
  5. Step 5: Solve for x
    x = 6,233,571,296.04/70,900.10
  6. Step 6: Final answer
    x = 87,920.49

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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.