Home / 98,447.40-135,856.20-56,005.84

Finding the Fourth Proportional to 98,447.40, 135,856.20 and 56,005.84

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Solution

The fourth proportional to 98,447.40, 135,856.20 and 56,005.84 is: 77,287.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,447.40 : 135,856.20 = 56,005.84 : x
  2. Step 2: Convert to fraction form
    98,447.40/135,856.20 = 56,005.84/x
  3. Step 3: Cross multiply
    98,447.40x = 135,856.20 × 56,005.84
  4. Step 4: Simplify right side
    98,447.40x = 7,608,740,600.21
  5. Step 5: Solve for x
    x = 7,608,740,600.21/98,447.40
  6. Step 6: Final answer
    x = 77,287.37

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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.