Home / 53,836.18-74,282.64-31,173.86

Finding the Fourth Proportional to 53,836.18, 74,282.64 and 31,173.86

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Solution

The fourth proportional to 53,836.18, 74,282.64 and 31,173.86 is: 43,013.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,836.18 : 74,282.64 = 31,173.86 : x
  2. Step 2: Convert to fraction form
    53,836.18/74,282.64 = 31,173.86/x
  3. Step 3: Cross multiply
    53,836.18x = 74,282.64 × 31,173.86
  4. Step 4: Simplify right side
    53,836.18x = 2,315,676,619.79
  5. Step 5: Solve for x
    x = 2,315,676,619.79/53,836.18
  6. Step 6: Final answer
    x = 43,013.39

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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.