Home / 65,615.36-98,423.52-28,143.82

Finding the Fourth Proportional to 65,615.36, 98,423.52 and 28,143.82

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Solution

The fourth proportional to 65,615.36, 98,423.52 and 28,143.82 is: 42,215.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,615.36 : 98,423.52 = 28,143.82 : x
  2. Step 2: Convert to fraction form
    65,615.36/98,423.52 = 28,143.82/x
  3. Step 3: Cross multiply
    65,615.36x = 98,423.52 × 28,143.82
  4. Step 4: Simplify right side
    65,615.36x = 2,770,013,830.65
  5. Step 5: Solve for x
    x = 2,770,013,830.65/65,615.36
  6. Step 6: Final answer
    x = 42,215.94

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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.