Home / 53,143.40-73,338.36-29,270.90

Finding the Fourth Proportional to 53,143.40, 73,338.36 and 29,270.90

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Solution

The fourth proportional to 53,143.40, 73,338.36 and 29,270.90 is: 40,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,143.40 : 73,338.36 = 29,270.90 : x
  2. Step 2: Convert to fraction form
    53,143.40/73,338.36 = 29,270.90/x
  3. Step 3: Cross multiply
    53,143.40x = 73,338.36 × 29,270.90
  4. Step 4: Simplify right side
    53,143.40x = 2,146,679,801.72
  5. Step 5: Solve for x
    x = 2,146,679,801.72/53,143.40
  6. Step 6: Final answer
    x = 40,394.10

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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.