Home / 65,986.38-98,985.24-21,612.96

Finding the Fourth Proportional to 65,986.38, 98,985.24 and 21,612.96

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Solution

The fourth proportional to 65,986.38, 98,985.24 and 21,612.96 is: 32,421.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,986.38 : 98,985.24 = 21,612.96 : x
  2. Step 2: Convert to fraction form
    65,986.38/98,985.24 = 21,612.96/x
  3. Step 3: Cross multiply
    65,986.38x = 98,985.24 × 21,612.96
  4. Step 4: Simplify right side
    65,986.38x = 2,139,364,032.71
  5. Step 5: Solve for x
    x = 2,139,364,032.71/65,986.38
  6. Step 6: Final answer
    x = 32,421.30

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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.