Home / 70,975.82-97,943.10-39,142.82

Finding the Fourth Proportional to 70,975.82, 97,943.10 and 39,142.82

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Solution

The fourth proportional to 70,975.82, 97,943.10 and 39,142.82 is: 54,015.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,975.82 : 97,943.10 = 39,142.82 : x
  2. Step 2: Convert to fraction form
    70,975.82/97,943.10 = 39,142.82/x
  3. Step 3: Cross multiply
    70,975.82x = 97,943.10 × 39,142.82
  4. Step 4: Simplify right side
    70,975.82x = 3,833,769,133.54
  5. Step 5: Solve for x
    x = 3,833,769,133.54/70,975.82
  6. Step 6: Final answer
    x = 54,015.14

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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.