Home / 48,705.66-72,910.53-31,187.79

Finding the Fourth Proportional to 48,705.66, 72,910.53 and 31,187.79

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Solution

The fourth proportional to 48,705.66, 72,910.53 and 31,187.79 is: 46,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,705.66 : 72,910.53 = 31,187.79 : x
  2. Step 2: Convert to fraction form
    48,705.66/72,910.53 = 31,187.79/x
  3. Step 3: Cross multiply
    48,705.66x = 72,910.53 × 31,187.79
  4. Step 4: Simplify right side
    48,705.66x = 2,273,918,298.43
  5. Step 5: Solve for x
    x = 2,273,918,298.43/48,705.66
  6. Step 6: Final answer
    x = 46,686.94

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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.