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Finding the Fourth Proportional to 70,724.04, 97,600.86 and 38,895

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Solution

The fourth proportional to 70,724.04, 97,600.86 and 38,895 is: 53,676.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,724.04 : 97,600.86 = 38,895 : x
  2. Step 2: Convert to fraction form
    70,724.04/97,600.86 = 38,895/x
  3. Step 3: Cross multiply
    70,724.04x = 97,600.86 × 38,895
  4. Step 4: Simplify right side
    70,724.04x = 3,796,185,449.70
  5. Step 5: Solve for x
    x = 3,796,185,449.70/70,724.04
  6. Step 6: Final answer
    x = 53,676.03

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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.