Home / 65,518.23-98,276.81-18,771.15

Finding the Fourth Proportional to 65,518.23, 98,276.81 and 18,771.15

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Solution

The fourth proportional to 65,518.23, 98,276.81 and 18,771.15 is: 28,156.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,518.23 : 98,276.81 = 18,771.15 : x
  2. Step 2: Convert to fraction form
    65,518.23/98,276.81 = 18,771.15/x
  3. Step 3: Cross multiply
    65,518.23x = 98,276.81 × 18,771.15
  4. Step 4: Simplify right side
    65,518.23x = 1,844,768,648.18
  5. Step 5: Solve for x
    x = 1,844,768,648.18/65,518.23
  6. Step 6: Final answer
    x = 28,156.57

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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.