Home / 48,308.73-66,666.81-31,319.79

Finding the Fourth Proportional to 48,308.73, 66,666.81 and 31,319.79

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Solution

The fourth proportional to 48,308.73, 66,666.81 and 31,319.79 is: 43,221.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,308.73 : 66,666.81 = 31,319.79 : x
  2. Step 2: Convert to fraction form
    48,308.73/66,666.81 = 31,319.79/x
  3. Step 3: Cross multiply
    48,308.73x = 66,666.81 × 31,319.79
  4. Step 4: Simplify right side
    48,308.73x = 2,087,990,489.17
  5. Step 5: Solve for x
    x = 2,087,990,489.17/48,308.73
  6. Step 6: Final answer
    x = 43,221.80

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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.