Home / 91,878.28-126,776.01-51,035.87

Finding the Fourth Proportional to 91,878.28, 126,776.01 and 51,035.87

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Solution

The fourth proportional to 91,878.28, 126,776.01 and 51,035.87 is: 70,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,878.28 : 126,776.01 = 51,035.87 : x
  2. Step 2: Convert to fraction form
    91,878.28/126,776.01 = 51,035.87/x
  3. Step 3: Cross multiply
    91,878.28x = 126,776.01 × 51,035.87
  4. Step 4: Simplify right side
    91,878.28x = 6,470,123,568.38
  5. Step 5: Solve for x
    x = 6,470,123,568.38/91,878.28
  6. Step 6: Final answer
    x = 70,420.60

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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.