Home / 70,979.22-97,947.63-39,142.17

Finding the Fourth Proportional to 70,979.22, 97,947.63 and 39,142.17

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Solution

The fourth proportional to 70,979.22, 97,947.63 and 39,142.17 is: 54,014.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,979.22 : 97,947.63 = 39,142.17 : x
  2. Step 2: Convert to fraction form
    70,979.22/97,947.63 = 39,142.17/x
  3. Step 3: Cross multiply
    70,979.22x = 97,947.63 × 39,142.17
  4. Step 4: Simplify right side
    70,979.22x = 3,833,882,784.56
  5. Step 5: Solve for x
    x = 3,833,882,784.56/70,979.22
  6. Step 6: Final answer
    x = 54,014.16

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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.