Home / 65,670.08-98,520.71-21,296.86

Finding the Fourth Proportional to 65,670.08, 98,520.71 and 21,296.86

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Solution

The fourth proportional to 65,670.08, 98,520.71 and 21,296.86 is: 31,950.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,670.08 : 98,520.71 = 21,296.86 : x
  2. Step 2: Convert to fraction form
    65,670.08/98,520.71 = 21,296.86/x
  3. Step 3: Cross multiply
    65,670.08x = 98,520.71 × 21,296.86
  4. Step 4: Simplify right side
    65,670.08x = 2,098,181,415.18
  5. Step 5: Solve for x
    x = 2,098,181,415.18/65,670.08
  6. Step 6: Final answer
    x = 31,950.34

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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.