Home / 48,139.04-72,208.24-13,078.56

Finding the Fourth Proportional to 48,139.04, 72,208.24 and 13,078.56

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Solution

The fourth proportional to 48,139.04, 72,208.24 and 13,078.56 is: 19,617.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,139.04 : 72,208.24 = 13,078.56 : x
  2. Step 2: Convert to fraction form
    48,139.04/72,208.24 = 13,078.56/x
  3. Step 3: Cross multiply
    48,139.04x = 72,208.24 × 13,078.56
  4. Step 4: Simplify right side
    48,139.04x = 944,379,799.33
  5. Step 5: Solve for x
    x = 944,379,799.33/48,139.04
  6. Step 6: Final answer
    x = 19,617.75

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1.5x scale

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.