Home / 53,876.67-74,349.39-31,215.17

Finding the Fourth Proportional to 53,876.67, 74,349.39 and 31,215.17

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Solution

The fourth proportional to 53,876.67, 74,349.39 and 31,215.17 is: 43,076.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,876.67 : 74,349.39 = 31,215.17 : x
  2. Step 2: Convert to fraction form
    53,876.67/74,349.39 = 31,215.17/x
  3. Step 3: Cross multiply
    53,876.67x = 74,349.39 × 31,215.17
  4. Step 4: Simplify right side
    53,876.67x = 2,320,828,848.25
  5. Step 5: Solve for x
    x = 2,320,828,848.25/53,876.67
  6. Step 6: Final answer
    x = 43,076.69

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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.