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Finding the Fourth Proportional to 70,765.35, 97,656.35 and 38,936.30

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Solution

The fourth proportional to 70,765.35, 97,656.35 and 38,936.30 is: 53,732.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,765.35 : 97,656.35 = 38,936.30 : x
  2. Step 2: Convert to fraction form
    70,765.35/97,656.35 = 38,936.30/x
  3. Step 3: Cross multiply
    70,765.35x = 97,656.35 × 38,936.30
  4. Step 4: Simplify right side
    70,765.35x = 3,802,376,940.51
  5. Step 5: Solve for x
    x = 3,802,376,940.51/70,765.35
  6. Step 6: Final answer
    x = 53,732.19

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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.