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Finding the Fourth Proportional to 53,143, 73,335.56 and 29,269.64

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Solution

The fourth proportional to 53,143, 73,335.56 and 29,269.64 is: 40,391.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,143 : 73,335.56 = 29,269.64 : x
  2. Step 2: Convert to fraction form
    53,143/73,335.56 = 29,269.64/x
  3. Step 3: Cross multiply
    53,143x = 73,335.56 × 29,269.64
  4. Step 4: Simplify right side
    53,143x = 2,146,505,440.40
  5. Step 5: Solve for x
    x = 2,146,505,440.40/53,143
  6. Step 6: Final answer
    x = 40,391.12

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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.