Home / 65,890.13-98,834.33-15,970.68

Finding the Fourth Proportional to 65,890.13, 98,834.33 and 15,970.68

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Solution

The fourth proportional to 65,890.13, 98,834.33 and 15,970.68 is: 23,955.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,890.13 : 98,834.33 = 15,970.68 : x
  2. Step 2: Convert to fraction form
    65,890.13/98,834.33 = 15,970.68/x
  3. Step 3: Cross multiply
    65,890.13x = 98,834.33 × 15,970.68
  4. Step 4: Simplify right side
    65,890.13x = 1,578,451,546.52
  5. Step 5: Solve for x
    x = 1,578,451,546.52/65,890.13
  6. Step 6: Final answer
    x = 23,955.81

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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.