Home / 91,426.76-126,180.60-51,142.76

Finding the Fourth Proportional to 91,426.76, 126,180.60 and 51,142.76

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Solution

The fourth proportional to 91,426.76, 126,180.60 and 51,142.76 is: 70,583.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,426.76 : 126,180.60 = 51,142.76 : x
  2. Step 2: Convert to fraction form
    91,426.76/126,180.60 = 51,142.76/x
  3. Step 3: Cross multiply
    91,426.76x = 126,180.60 × 51,142.76
  4. Step 4: Simplify right side
    91,426.76x = 6,453,224,142.46
  5. Step 5: Solve for x
    x = 6,453,224,142.46/91,426.76
  6. Step 6: Final answer
    x = 70,583.54

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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.