Home / 105,282.48-145,290.21-57,535.85

Finding the Fourth Proportional to 105,282.48, 145,290.21 and 57,535.85

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Solution

The fourth proportional to 105,282.48, 145,290.21 and 57,535.85 is: 79,399.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,282.48 : 145,290.21 = 57,535.85 : x
  2. Step 2: Convert to fraction form
    105,282.48/145,290.21 = 57,535.85/x
  3. Step 3: Cross multiply
    105,282.48x = 145,290.21 × 57,535.85
  4. Step 4: Simplify right side
    105,282.48x = 8,359,395,876.49
  5. Step 5: Solve for x
    x = 8,359,395,876.49/105,282.48
  6. Step 6: Final answer
    x = 79,399.68

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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.