Home / 53,681.53-74,091.39-31,021.48

Finding the Fourth Proportional to 53,681.53, 74,091.39 and 31,021.48

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Solution

The fourth proportional to 53,681.53, 74,091.39 and 31,021.48 is: 42,815.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,681.53 : 74,091.39 = 31,021.48 : x
  2. Step 2: Convert to fraction form
    53,681.53/74,091.39 = 31,021.48/x
  3. Step 3: Cross multiply
    53,681.53x = 74,091.39 × 31,021.48
  4. Step 4: Simplify right side
    53,681.53x = 2,298,424,202.60
  5. Step 5: Solve for x
    x = 2,298,424,202.60/53,681.53
  6. Step 6: Final answer
    x = 42,815.92

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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.