Home / 70,997.17-97,972.80-40,761.21

Finding the Fourth Proportional to 70,997.17, 97,972.80 and 40,761.21

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Solution

The fourth proportional to 70,997.17, 97,972.80 and 40,761.21 is: 56,248.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,997.17 : 97,972.80 = 40,761.21 : x
  2. Step 2: Convert to fraction form
    70,997.17/97,972.80 = 40,761.21/x
  3. Step 3: Cross multiply
    70,997.17x = 97,972.80 × 40,761.21
  4. Step 4: Simplify right side
    70,997.17x = 3,993,489,875.09
  5. Step 5: Solve for x
    x = 3,993,489,875.09/70,997.17
  6. Step 6: Final answer
    x = 56,248.58

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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.