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Finding the Fourth Proportional to 73,521.36, 101,460.06 and 39,987.36

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Solution

The fourth proportional to 73,521.36, 101,460.06 and 39,987.36 is: 55,182.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,521.36 : 101,460.06 = 39,987.36 : x
  2. Step 2: Convert to fraction form
    73,521.36/101,460.06 = 39,987.36/x
  3. Step 3: Cross multiply
    73,521.36x = 101,460.06 × 39,987.36
  4. Step 4: Simplify right side
    73,521.36x = 4,057,119,944.84
  5. Step 5: Solve for x
    x = 4,057,119,944.84/73,521.36
  6. Step 6: Final answer
    x = 55,182.87

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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.