Home / 65,558.34-98,341.20-18,810

Finding the Fourth Proportional to 65,558.34, 98,341.20 and 18,810

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Solution

The fourth proportional to 65,558.34, 98,341.20 and 18,810 is: 28,216.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,558.34 : 98,341.20 = 18,810 : x
  2. Step 2: Convert to fraction form
    65,558.34/98,341.20 = 18,810/x
  3. Step 3: Cross multiply
    65,558.34x = 98,341.20 × 18,810
  4. Step 4: Simplify right side
    65,558.34x = 1,849,797,972
  5. Step 5: Solve for x
    x = 1,849,797,972/65,558.34
  6. Step 6: Final answer
    x = 28,216.06

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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.