Home / 65,623.95-98,451.59-21,250.80

Finding the Fourth Proportional to 65,623.95, 98,451.59 and 21,250.80

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Solution

The fourth proportional to 65,623.95, 98,451.59 and 21,250.80 is: 31,881.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,623.95 : 98,451.59 = 21,250.80 : x
  2. Step 2: Convert to fraction form
    65,623.95/98,451.59 = 21,250.80/x
  3. Step 3: Cross multiply
    65,623.95x = 98,451.59 × 21,250.80
  4. Step 4: Simplify right side
    65,623.95x = 2,092,174,942.52
  5. Step 5: Solve for x
    x = 2,092,174,942.52/65,623.95
  6. Step 6: Final answer
    x = 31,881.27

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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.