Home / 65,811.14-98,716.63-21,437.82

Finding the Fourth Proportional to 65,811.14, 98,716.63 and 21,437.82

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Solution

The fourth proportional to 65,811.14, 98,716.63 and 21,437.82 is: 32,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,811.14 : 98,716.63 = 21,437.82 : x
  2. Step 2: Convert to fraction form
    65,811.14/98,716.63 = 21,437.82/x
  3. Step 3: Cross multiply
    65,811.14x = 98,716.63 × 21,437.82
  4. Step 4: Simplify right side
    65,811.14x = 2,116,269,371.74
  5. Step 5: Solve for x
    x = 2,116,269,371.74/65,811.14
  6. Step 6: Final answer
    x = 32,156.70

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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.