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Finding the Fourth Proportional to 73,429.60, 101,331.60 and 39,895.36

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Solution

The fourth proportional to 73,429.60, 101,331.60 and 39,895.36 is: 55,054.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,429.60 : 101,331.60 = 39,895.36 : x
  2. Step 2: Convert to fraction form
    73,429.60/101,331.60 = 39,895.36/x
  3. Step 3: Cross multiply
    73,429.60x = 101,331.60 × 39,895.36
  4. Step 4: Simplify right side
    73,429.60x = 4,042,660,661.38
  5. Step 5: Solve for x
    x = 4,042,660,661.38/73,429.60
  6. Step 6: Final answer
    x = 55,054.92

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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.