Home / 65,434.91-98,168.03-21,065.81

Finding the Fourth Proportional to 65,434.91, 98,168.03 and 21,065.81

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Solution

The fourth proportional to 65,434.91, 98,168.03 and 21,065.81 is: 31,603.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,434.91 : 98,168.03 = 21,065.81 : x
  2. Step 2: Convert to fraction form
    65,434.91/98,168.03 = 21,065.81/x
  3. Step 3: Cross multiply
    65,434.91x = 98,168.03 × 21,065.81
  4. Step 4: Simplify right side
    65,434.91x = 2,067,989,068.05
  5. Step 5: Solve for x
    x = 2,067,989,068.05/65,434.91
  6. Step 6: Final answer
    x = 31,603.76

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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.