Home / 70,968.16-97,936.68-39,138.16

Finding the Fourth Proportional to 70,968.16, 97,936.68 and 39,138.16

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Solution

The fourth proportional to 70,968.16, 97,936.68 and 39,138.16 is: 54,011.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,968.16 : 97,936.68 = 39,138.16 : x
  2. Step 2: Convert to fraction form
    70,968.16/97,936.68 = 39,138.16/x
  3. Step 3: Cross multiply
    70,968.16x = 97,936.68 × 39,138.16
  4. Step 4: Simplify right side
    70,968.16x = 3,833,061,451.71
  5. Step 5: Solve for x
    x = 3,833,061,451.71/70,968.16
  6. Step 6: Final answer
    x = 54,011.00

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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.