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Finding the Fourth Proportional to 91,951.60, 126,879.60 and 53,188.24

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Solution

The fourth proportional to 91,951.60, 126,879.60 and 53,188.24 is: 73,391.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,951.60 : 126,879.60 = 53,188.24 : x
  2. Step 2: Convert to fraction form
    91,951.60/126,879.60 = 53,188.24/x
  3. Step 3: Cross multiply
    91,951.60x = 126,879.60 × 53,188.24
  4. Step 4: Simplify right side
    91,951.60x = 6,748,502,615.90
  5. Step 5: Solve for x
    x = 6,748,502,615.90/91,951.60
  6. Step 6: Final answer
    x = 73,391.90

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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.