Home / 98,427.30-135,828.14-55,406.69

Finding the Fourth Proportional to 98,427.30, 135,828.14 and 55,406.69

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Solution

The fourth proportional to 98,427.30, 135,828.14 and 55,406.69 is: 76,460.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,427.30 : 135,828.14 = 55,406.69 : x
  2. Step 2: Convert to fraction form
    98,427.30/135,828.14 = 55,406.69/x
  3. Step 3: Cross multiply
    98,427.30x = 135,828.14 × 55,406.69
  4. Step 4: Simplify right side
    98,427.30x = 7,525,786,690.08
  5. Step 5: Solve for x
    x = 7,525,786,690.08/98,427.30
  6. Step 6: Final answer
    x = 76,460.36

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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.