Home / 65,418.09-98,127.24-18,670.98

Finding the Fourth Proportional to 65,418.09, 98,127.24 and 18,670.98

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Solution

The fourth proportional to 65,418.09, 98,127.24 and 18,670.98 is: 28,006.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,418.09 : 98,127.24 = 18,670.98 : x
  2. Step 2: Convert to fraction form
    65,418.09/98,127.24 = 18,670.98/x
  3. Step 3: Cross multiply
    65,418.09x = 98,127.24 × 18,670.98
  4. Step 4: Simplify right side
    65,418.09x = 1,832,131,735.50
  5. Step 5: Solve for x
    x = 1,832,131,735.50/65,418.09
  6. Step 6: Final answer
    x = 28,006.50

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1.5x scale

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.