Home / 101,542.48-152,338.02-31,421.80

Finding the Fourth Proportional to 101,542.48, 152,338.02 and 31,421.80

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Solution

The fourth proportional to 101,542.48, 152,338.02 and 31,421.80 is: 47,140.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,542.48 : 152,338.02 = 31,421.80 : x
  2. Step 2: Convert to fraction form
    101,542.48/152,338.02 = 31,421.80/x
  3. Step 3: Cross multiply
    101,542.48x = 152,338.02 × 31,421.80
  4. Step 4: Simplify right side
    101,542.48x = 4,786,734,796.84
  5. Step 5: Solve for x
    x = 4,786,734,796.84/101,542.48
  6. Step 6: Final answer
    x = 47,140.22

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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.