Home / 91,303.42-126,078.87-57,370.70

Finding the Fourth Proportional to 91,303.42, 126,078.87 and 57,370.70

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Solution

The fourth proportional to 91,303.42, 126,078.87 and 57,370.70 is: 79,221.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,303.42 : 126,078.87 = 57,370.70 : x
  2. Step 2: Convert to fraction form
    91,303.42/126,078.87 = 57,370.70/x
  3. Step 3: Cross multiply
    91,303.42x = 126,078.87 × 57,370.70
  4. Step 4: Simplify right side
    91,303.42x = 7,233,232,611.85
  5. Step 5: Solve for x
    x = 7,233,232,611.85/91,303.42
  6. Step 6: Final answer
    x = 79,221.93

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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.