Home / 83,386.54-115,072.28-45,660.80

Finding the Fourth Proportional to 83,386.54, 115,072.28 and 45,660.80

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Solution

The fourth proportional to 83,386.54, 115,072.28 and 45,660.80 is: 63,011.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,386.54 : 115,072.28 = 45,660.80 : x
  2. Step 2: Convert to fraction form
    83,386.54/115,072.28 = 45,660.80/x
  3. Step 3: Cross multiply
    83,386.54x = 115,072.28 × 45,660.80
  4. Step 4: Simplify right side
    83,386.54x = 5,254,292,362.62
  5. Step 5: Solve for x
    x = 5,254,292,362.62/83,386.54
  6. Step 6: Final answer
    x = 63,011.28

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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.