Home / 98,384.98-135,758.91-55,359.13

Finding the Fourth Proportional to 98,384.98, 135,758.91 and 55,359.13

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Solution

The fourth proportional to 98,384.98, 135,758.91 and 55,359.13 is: 76,388.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,384.98 : 135,758.91 = 55,359.13 : x
  2. Step 2: Convert to fraction form
    98,384.98/135,758.91 = 55,359.13/x
  3. Step 3: Cross multiply
    98,384.98x = 135,758.91 × 55,359.13
  4. Step 4: Simplify right side
    98,384.98x = 7,515,495,147.35
  5. Step 5: Solve for x
    x = 7,515,495,147.35/98,384.98
  6. Step 6: Final answer
    x = 76,388.64

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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.