Home / 65,811.39-98,710.25-30,261.70

Finding the Fourth Proportional to 65,811.39, 98,710.25 and 30,261.70

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Solution

The fourth proportional to 65,811.39, 98,710.25 and 30,261.70 is: 45,389.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,811.39 : 98,710.25 = 30,261.70 : x
  2. Step 2: Convert to fraction form
    65,811.39/98,710.25 = 30,261.70/x
  3. Step 3: Cross multiply
    65,811.39x = 98,710.25 × 30,261.70
  4. Step 4: Simplify right side
    65,811.39x = 2,987,139,944.50
  5. Step 5: Solve for x
    x = 2,987,139,944.50/65,811.39
  6. Step 6: Final answer
    x = 45,389.41

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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.