Home / 98,919.28-136,505.64-56,469.52

Finding the Fourth Proportional to 98,919.28, 136,505.64 and 56,469.52

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Solution

The fourth proportional to 98,919.28, 136,505.64 and 56,469.52 is: 77,926.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,919.28 : 136,505.64 = 56,469.52 : x
  2. Step 2: Convert to fraction form
    98,919.28/136,505.64 = 56,469.52/x
  3. Step 3: Cross multiply
    98,919.28x = 136,505.64 × 56,469.52
  4. Step 4: Simplify right side
    98,919.28x = 7,708,407,968.09
  5. Step 5: Solve for x
    x = 7,708,407,968.09/98,919.28
  6. Step 6: Final answer
    x = 77,926.24

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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.