Home / 65,391.24-98,077.50-21,012.15

Finding the Fourth Proportional to 65,391.24, 98,077.50 and 21,012.15

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Solution

The fourth proportional to 65,391.24, 98,077.50 and 21,012.15 is: 31,515.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,391.24 : 98,077.50 = 21,012.15 : x
  2. Step 2: Convert to fraction form
    65,391.24/98,077.50 = 21,012.15/x
  3. Step 3: Cross multiply
    65,391.24x = 98,077.50 × 21,012.15
  4. Step 4: Simplify right side
    65,391.24x = 2,060,819,141.63
  5. Step 5: Solve for x
    x = 2,060,819,141.63/65,391.24
  6. Step 6: Final answer
    x = 31,515.22

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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.