Home / 65,518.48-98,277.18-18,771.40

Finding the Fourth Proportional to 65,518.48, 98,277.18 and 18,771.40

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Solution

The fourth proportional to 65,518.48, 98,277.18 and 18,771.40 is: 28,156.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,518.48 : 98,277.18 = 18,771.40 : x
  2. Step 2: Convert to fraction form
    65,518.48/98,277.18 = 18,771.40/x
  3. Step 3: Cross multiply
    65,518.48x = 98,277.18 × 18,771.40
  4. Step 4: Simplify right side
    65,518.48x = 1,844,800,256.65
  5. Step 5: Solve for x
    x = 1,844,800,256.65/65,518.48
  6. Step 6: Final answer
    x = 28,156.95

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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.