Home / 53,869.56-74,328.72-31,207.20

Finding the Fourth Proportional to 53,869.56, 74,328.72 and 31,207.20

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Solution

The fourth proportional to 53,869.56, 74,328.72 and 31,207.20 is: 43,059.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,869.56 : 74,328.72 = 31,207.20 : x
  2. Step 2: Convert to fraction form
    53,869.56/74,328.72 = 31,207.20/x
  3. Step 3: Cross multiply
    53,869.56x = 74,328.72 × 31,207.20
  4. Step 4: Simplify right side
    53,869.56x = 2,319,591,230.78
  5. Step 5: Solve for x
    x = 2,319,591,230.78/53,869.56
  6. Step 6: Final answer
    x = 43,059.41

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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.