Home / 81,048.24-121,572.36-34,301.52

Finding the Fourth Proportional to 81,048.24, 121,572.36 and 34,301.52

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Solution

The fourth proportional to 81,048.24, 121,572.36 and 34,301.52 is: 51,452.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,048.24 : 121,572.36 = 34,301.52 : x
  2. Step 2: Convert to fraction form
    81,048.24/121,572.36 = 34,301.52/x
  3. Step 3: Cross multiply
    81,048.24x = 121,572.36 × 34,301.52
  4. Step 4: Simplify right side
    81,048.24x = 4,170,116,737.99
  5. Step 5: Solve for x
    x = 4,170,116,737.99/81,048.24
  6. Step 6: Final answer
    x = 51,452.28

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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.