Home / 98,079.32-135,364.56-55,628.84

Finding the Fourth Proportional to 98,079.32, 135,364.56 and 55,628.84

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Solution

The fourth proportional to 98,079.32, 135,364.56 and 55,628.84 is: 76,776.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,079.32 : 135,364.56 = 55,628.84 : x
  2. Step 2: Convert to fraction form
    98,079.32/135,364.56 = 55,628.84/x
  3. Step 3: Cross multiply
    98,079.32x = 135,364.56 × 55,628.84
  4. Step 4: Simplify right side
    98,079.32x = 7,530,173,449.91
  5. Step 5: Solve for x
    x = 7,530,173,449.91/98,079.32
  6. Step 6: Final answer
    x = 76,776.36

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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.