Home / 65,037.30-89,761.80-39,551.76

Finding the Fourth Proportional to 65,037.30, 89,761.80 and 39,551.76

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Solution

The fourth proportional to 65,037.30, 89,761.80 and 39,551.76 is: 54,587.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,037.30 : 89,761.80 = 39,551.76 : x
  2. Step 2: Convert to fraction form
    65,037.30/89,761.80 = 39,551.76/x
  3. Step 3: Cross multiply
    65,037.30x = 89,761.80 × 39,551.76
  4. Step 4: Simplify right side
    65,037.30x = 3,550,237,170.77
  5. Step 5: Solve for x
    x = 3,550,237,170.77/65,037.30
  6. Step 6: Final answer
    x = 54,587.71

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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.