Home / 98,539.28-135,984.34-56,097.76

Finding the Fourth Proportional to 98,539.28, 135,984.34 and 56,097.76

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Solution

The fourth proportional to 98,539.28, 135,984.34 and 56,097.76 is: 77,414.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,539.28 : 135,984.34 = 56,097.76 : x
  2. Step 2: Convert to fraction form
    98,539.28/135,984.34 = 56,097.76/x
  3. Step 3: Cross multiply
    98,539.28x = 135,984.34 × 56,097.76
  4. Step 4: Simplify right side
    98,539.28x = 7,628,416,869.08
  5. Step 5: Solve for x
    x = 7,628,416,869.08/98,539.28
  6. Step 6: Final answer
    x = 77,414.98

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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.