Home / 98,026.56-135,240-57,715.68

Finding the Fourth Proportional to 98,026.56, 135,240 and 57,715.68

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Solution

The fourth proportional to 98,026.56, 135,240 and 57,715.68 is: 79,626.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,026.56 : 135,240 = 57,715.68 : x
  2. Step 2: Convert to fraction form
    98,026.56/135,240 = 57,715.68/x
  3. Step 3: Cross multiply
    98,026.56x = 135,240 × 57,715.68
  4. Step 4: Simplify right side
    98,026.56x = 7,805,468,563.20
  5. Step 5: Solve for x
    x = 7,805,468,563.20/98,026.56
  6. Step 6: Final answer
    x = 79,626.06

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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.