Home / 91,152.32-125,782.00-57,149.94

Finding the Fourth Proportional to 91,152.32, 125,782.00 and 57,149.94

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Solution

The fourth proportional to 91,152.32, 125,782.00 and 57,149.94 is: 78,861.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,152.32 : 125,782.00 = 57,149.94 : x
  2. Step 2: Convert to fraction form
    91,152.32/125,782.00 = 57,149.94/x
  3. Step 3: Cross multiply
    91,152.32x = 125,782.00 × 57,149.94
  4. Step 4: Simplify right side
    91,152.32x = 7,188,433,374.36
  5. Step 5: Solve for x
    x = 7,188,433,374.36/91,152.32
  6. Step 6: Final answer
    x = 78,861.77

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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.