Home / 98,315.11-135,686.37-55,880.02

Finding the Fourth Proportional to 98,315.11, 135,686.37 and 55,880.02

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Solution

The fourth proportional to 98,315.11, 135,686.37 and 55,880.02 is: 77,120.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,315.11 : 135,686.37 = 55,880.02 : x
  2. Step 2: Convert to fraction form
    98,315.11/135,686.37 = 55,880.02/x
  3. Step 3: Cross multiply
    98,315.11x = 135,686.37 × 55,880.02
  4. Step 4: Simplify right side
    98,315.11x = 7,582,157,069.33
  5. Step 5: Solve for x
    x = 7,582,157,069.33/98,315.11
  6. Step 6: Final answer
    x = 77,120.97

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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.