Home / 53,687.76-74,092.32-31,030.80

Finding the Fourth Proportional to 53,687.76, 74,092.32 and 31,030.80

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Solution

The fourth proportional to 53,687.76, 74,092.32 and 31,030.80 is: 42,824.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,687.76 : 74,092.32 = 31,030.80 : x
  2. Step 2: Convert to fraction form
    53,687.76/74,092.32 = 31,030.80/x
  3. Step 3: Cross multiply
    53,687.76x = 74,092.32 × 31,030.80
  4. Step 4: Simplify right side
    53,687.76x = 2,299,143,963.46
  5. Step 5: Solve for x
    x = 2,299,143,963.46/53,687.76
  6. Step 6: Final answer
    x = 42,824.36

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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.