Home / 74,508.15-102,820.89-43,899.17

Finding the Fourth Proportional to 74,508.15, 102,820.89 and 43,899.17

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Solution

The fourth proportional to 74,508.15, 102,820.89 and 43,899.17 is: 60,580.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,508.15 : 102,820.89 = 43,899.17 : x
  2. Step 2: Convert to fraction form
    74,508.15/102,820.89 = 43,899.17/x
  3. Step 3: Cross multiply
    74,508.15x = 102,820.89 × 43,899.17
  4. Step 4: Simplify right side
    74,508.15x = 4,513,751,380.18
  5. Step 5: Solve for x
    x = 4,513,751,380.18/74,508.15
  6. Step 6: Final answer
    x = 60,580.64

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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.