Home / 90,976.42-125,558.56-55,166.32

Finding the Fourth Proportional to 90,976.42, 125,558.56 and 55,166.32

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Solution

The fourth proportional to 90,976.42, 125,558.56 and 55,166.32 is: 76,136.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,976.42 : 125,558.56 = 55,166.32 : x
  2. Step 2: Convert to fraction form
    90,976.42/125,558.56 = 55,166.32/x
  3. Step 3: Cross multiply
    90,976.42x = 125,558.56 × 55,166.32
  4. Step 4: Simplify right side
    90,976.42x = 6,926,602,796.07
  5. Step 5: Solve for x
    x = 6,926,602,796.07/90,976.42
  6. Step 6: Final answer
    x = 76,136.25

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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.