Home / 91,928.34-126,750.74-66,393.90

Finding the Fourth Proportional to 91,928.34, 126,750.74 and 66,393.90

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Solution

The fourth proportional to 91,928.34, 126,750.74 and 66,393.90 is: 91,543.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,928.34 : 126,750.74 = 66,393.90 : x
  2. Step 2: Convert to fraction form
    91,928.34/126,750.74 = 66,393.90/x
  3. Step 3: Cross multiply
    91,928.34x = 126,750.74 × 66,393.90
  4. Step 4: Simplify right side
    91,928.34x = 8,415,475,956.49
  5. Step 5: Solve for x
    x = 8,415,475,956.49/91,928.34
  6. Step 6: Final answer
    x = 91,543.87

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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.