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Finding the Fourth Proportional to 53,430.57, 73,733.76 and 31,930.11

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Solution

The fourth proportional to 53,430.57, 73,733.76 and 31,930.11 is: 44,063.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,430.57 : 73,733.76 = 31,930.11 : x
  2. Step 2: Convert to fraction form
    53,430.57/73,733.76 = 31,930.11/x
  3. Step 3: Cross multiply
    53,430.57x = 73,733.76 × 31,930.11
  4. Step 4: Simplify right side
    53,430.57x = 2,354,327,067.51
  5. Step 5: Solve for x
    x = 2,354,327,067.51/53,430.57
  6. Step 6: Final answer
    x = 44,063.30

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1.5x scale

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.