Home / 69,708.13-104,503.40-30,235.51

Finding the Fourth Proportional to 69,708.13, 104,503.40 and 30,235.51

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Solution

The fourth proportional to 69,708.13, 104,503.40 and 30,235.51 is: 45,327.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,708.13 : 104,503.40 = 30,235.51 : x
  2. Step 2: Convert to fraction form
    69,708.13/104,503.40 = 30,235.51/x
  3. Step 3: Cross multiply
    69,708.13x = 104,503.40 × 30,235.51
  4. Step 4: Simplify right side
    69,708.13x = 3,159,712,922.04
  5. Step 5: Solve for x
    x = 3,159,712,922.04/69,708.13
  6. Step 6: Final answer
    x = 45,327.76

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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.