Home / 65,707.16-98,575.38-18,960.03

Finding the Fourth Proportional to 65,707.16, 98,575.38 and 18,960.03

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Solution

The fourth proportional to 65,707.16, 98,575.38 and 18,960.03 is: 28,444.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,707.16 : 98,575.38 = 18,960.03 : x
  2. Step 2: Convert to fraction form
    65,707.16/98,575.38 = 18,960.03/x
  3. Step 3: Cross multiply
    65,707.16x = 98,575.38 × 18,960.03
  4. Step 4: Simplify right side
    65,707.16x = 1,868,992,162.06
  5. Step 5: Solve for x
    x = 1,868,992,162.06/65,707.16
  6. Step 6: Final answer
    x = 28,444.27

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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.