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Finding the Fourth Proportional to 91,324.76, 126,027.74 and 51,038.48

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Solution

The fourth proportional to 91,324.76, 126,027.74 and 51,038.48 is: 70,432.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,324.76 : 126,027.74 = 51,038.48 : x
  2. Step 2: Convert to fraction form
    91,324.76/126,027.74 = 51,038.48/x
  3. Step 3: Cross multiply
    91,324.76x = 126,027.74 × 51,038.48
  4. Step 4: Simplify right side
    91,324.76x = 6,432,263,402.10
  5. Step 5: Solve for x
    x = 6,432,263,402.10/91,324.76
  6. Step 6: Final answer
    x = 70,432.86

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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.