Home / 98,384.64-135,753.84-55,358.16

Finding the Fourth Proportional to 98,384.64, 135,753.84 and 55,358.16

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Solution

The fourth proportional to 98,384.64, 135,753.84 and 55,358.16 is: 76,384.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,384.64 : 135,753.84 = 55,358.16 : x
  2. Step 2: Convert to fraction form
    98,384.64/135,753.84 = 55,358.16/x
  3. Step 3: Cross multiply
    98,384.64x = 135,753.84 × 55,358.16
  4. Step 4: Simplify right side
    98,384.64x = 7,515,082,795.33
  5. Step 5: Solve for x
    x = 7,515,082,795.33/98,384.64
  6. Step 6: Final answer
    x = 76,384.72

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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.