Home / 53,720.27-74,143.10-31,073.03

Finding the Fourth Proportional to 53,720.27, 74,143.10 and 31,073.03

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Solution

The fourth proportional to 53,720.27, 74,143.10 and 31,073.03 is: 42,886.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,720.27 : 74,143.10 = 31,073.03 : x
  2. Step 2: Convert to fraction form
    53,720.27/74,143.10 = 31,073.03/x
  3. Step 3: Cross multiply
    53,720.27x = 74,143.10 × 31,073.03
  4. Step 4: Simplify right side
    53,720.27x = 2,303,850,597.96
  5. Step 5: Solve for x
    x = 2,303,850,597.96/53,720.27
  6. Step 6: Final answer
    x = 42,886.06

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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.