Home / 98,039.40-135,295.20-55,598.64

Finding the Fourth Proportional to 98,039.40, 135,295.20 and 55,598.64

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Solution

The fourth proportional to 98,039.40, 135,295.20 and 55,598.64 is: 76,726.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,039.40 : 135,295.20 = 55,598.64 : x
  2. Step 2: Convert to fraction form
    98,039.40/135,295.20 = 55,598.64/x
  3. Step 3: Cross multiply
    98,039.40x = 135,295.20 × 55,598.64
  4. Step 4: Simplify right side
    98,039.40x = 7,522,229,118.53
  5. Step 5: Solve for x
    x = 7,522,229,118.53/98,039.40
  6. Step 6: Final answer
    x = 76,726.59

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1.5x scale

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.