Home / 65,400.30-90,262.53-38,551.50

Finding the Fourth Proportional to 65,400.30, 90,262.53 and 38,551.50

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Solution

The fourth proportional to 65,400.30, 90,262.53 and 38,551.50 is: 53,207.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,400.30 : 90,262.53 = 38,551.50 : x
  2. Step 2: Convert to fraction form
    65,400.30/90,262.53 = 38,551.50/x
  3. Step 3: Cross multiply
    65,400.30x = 90,262.53 × 38,551.50
  4. Step 4: Simplify right side
    65,400.30x = 3,479,755,925.30
  5. Step 5: Solve for x
    x = 3,479,755,925.30/65,400.30
  6. Step 6: Final answer
    x = 53,207.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.