Home / 104,689.60-144,471.36-58,749.28

Finding the Fourth Proportional to 104,689.60, 144,471.36 and 58,749.28

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Solution

The fourth proportional to 104,689.60, 144,471.36 and 58,749.28 is: 81,073.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,689.60 : 144,471.36 = 58,749.28 : x
  2. Step 2: Convert to fraction form
    104,689.60/144,471.36 = 58,749.28/x
  3. Step 3: Cross multiply
    104,689.60x = 144,471.36 × 58,749.28
  4. Step 4: Simplify right side
    104,689.60x = 8,487,588,380.62
  5. Step 5: Solve for x
    x = 8,487,588,380.62/104,689.60
  6. Step 6: Final answer
    x = 81,073.84

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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.