Home / 91,315.50-126,015.03-51,029.25

Finding the Fourth Proportional to 91,315.50, 126,015.03 and 51,029.25

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Solution

The fourth proportional to 91,315.50, 126,015.03 and 51,029.25 is: 70,420.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,315.50 : 126,015.03 = 51,029.25 : x
  2. Step 2: Convert to fraction form
    91,315.50/126,015.03 = 51,029.25/x
  3. Step 3: Cross multiply
    91,315.50x = 126,015.03 × 51,029.25
  4. Step 4: Simplify right side
    91,315.50x = 6,430,452,942.18
  5. Step 5: Solve for x
    x = 6,430,452,942.18/91,315.50
  6. Step 6: Final answer
    x = 70,420.17

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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.