Home / 53,139.60-73,316.88-31,911.12

Finding the Fourth Proportional to 53,139.60, 73,316.88 and 31,911.12

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Solution

The fourth proportional to 53,139.60, 73,316.88 and 31,911.12 is: 44,027.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,139.60 : 73,316.88 = 31,911.12 : x
  2. Step 2: Convert to fraction form
    53,139.60/73,316.88 = 31,911.12/x
  3. Step 3: Cross multiply
    53,139.60x = 73,316.88 × 31,911.12
  4. Step 4: Simplify right side
    53,139.60x = 2,339,623,755.71
  5. Step 5: Solve for x
    x = 2,339,623,755.71/53,139.60
  6. Step 6: Final answer
    x = 44,027.88

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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.