Home / 58,705.19-81,013.12-31,847.70

Finding the Fourth Proportional to 58,705.19, 81,013.12 and 31,847.70

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Solution

The fourth proportional to 58,705.19, 81,013.12 and 31,847.70 is: 43,949.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,705.19 : 81,013.12 = 31,847.70 : x
  2. Step 2: Convert to fraction form
    58,705.19/81,013.12 = 31,847.70/x
  3. Step 3: Cross multiply
    58,705.19x = 81,013.12 × 31,847.70
  4. Step 4: Simplify right side
    58,705.19x = 2,580,081,766.00
  5. Step 5: Solve for x
    x = 2,580,081,766.00/58,705.19
  6. Step 6: Final answer
    x = 43,949.80

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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.