Home / 83,664.96-115,456.80-45,938.40

Finding the Fourth Proportional to 83,664.96, 115,456.80 and 45,938.40

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Solution

The fourth proportional to 83,664.96, 115,456.80 and 45,938.40 is: 63,394.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,664.96 : 115,456.80 = 45,938.40 : x
  2. Step 2: Convert to fraction form
    83,664.96/115,456.80 = 45,938.40/x
  3. Step 3: Cross multiply
    83,664.96x = 115,456.80 × 45,938.40
  4. Step 4: Simplify right side
    83,664.96x = 5,303,900,661.12
  5. Step 5: Solve for x
    x = 5,303,900,661.12/83,664.96
  6. Step 6: Final answer
    x = 63,394.53

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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.