Home / 83,386.56-115,072.30-45,660.80

Finding the Fourth Proportional to 83,386.56, 115,072.30 and 45,660.80

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Solution

The fourth proportional to 83,386.56, 115,072.30 and 45,660.80 is: 63,011.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,386.56 : 115,072.30 = 45,660.80 : x
  2. Step 2: Convert to fraction form
    83,386.56/115,072.30 = 45,660.80/x
  3. Step 3: Cross multiply
    83,386.56x = 115,072.30 × 45,660.80
  4. Step 4: Simplify right side
    83,386.56x = 5,254,293,275.84
  5. Step 5: Solve for x
    x = 5,254,293,275.84/83,386.56
  6. Step 6: Final answer
    x = 63,011.27

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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.