Home / 65,440.98-98,165.12-21,064.32

Finding the Fourth Proportional to 65,440.98, 98,165.12 and 21,064.32

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Solution

The fourth proportional to 65,440.98, 98,165.12 and 21,064.32 is: 31,597.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,440.98 : 98,165.12 = 21,064.32 : x
  2. Step 2: Convert to fraction form
    65,440.98/98,165.12 = 21,064.32/x
  3. Step 3: Cross multiply
    65,440.98x = 98,165.12 × 21,064.32
  4. Step 4: Simplify right side
    65,440.98x = 2,067,781,395.20
  5. Step 5: Solve for x
    x = 2,067,781,395.20/65,440.98
  6. Step 6: Final answer
    x = 31,597.65

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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.