Home / 70,518.36-105,777.72-17,932.08

Finding the Fourth Proportional to 70,518.36, 105,777.72 and 17,932.08

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Solution

The fourth proportional to 70,518.36, 105,777.72 and 17,932.08 is: 26,898.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,518.36 : 105,777.72 = 17,932.08 : x
  2. Step 2: Convert to fraction form
    70,518.36/105,777.72 = 17,932.08/x
  3. Step 3: Cross multiply
    70,518.36x = 105,777.72 × 17,932.08
  4. Step 4: Simplify right side
    70,518.36x = 1,896,814,537.26
  5. Step 5: Solve for x
    x = 1,896,814,537.26/70,518.36
  6. Step 6: Final answer
    x = 26,898.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.