Home / 96,643-133,381.92-58,939.12

Finding the Fourth Proportional to 96,643, 133,381.92 and 58,939.12

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Solution

The fourth proportional to 96,643, 133,381.92 and 58,939.12 is: 81,344.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,643 : 133,381.92 = 58,939.12 : x
  2. Step 2: Convert to fraction form
    96,643/133,381.92 = 58,939.12/x
  3. Step 3: Cross multiply
    96,643x = 133,381.92 × 58,939.12
  4. Step 4: Simplify right side
    96,643x = 7,861,412,988.71
  5. Step 5: Solve for x
    x = 7,861,412,988.71/96,643
  6. Step 6: Final answer
    x = 81,344.88

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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.