Home / 91,899.36-126,812.16-51,603.96

Finding the Fourth Proportional to 91,899.36, 126,812.16 and 51,603.96

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Solution

The fourth proportional to 91,899.36, 126,812.16 and 51,603.96 is: 71,208.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,899.36 : 126,812.16 = 51,603.96 : x
  2. Step 2: Convert to fraction form
    91,899.36/126,812.16 = 51,603.96/x
  3. Step 3: Cross multiply
    91,899.36x = 126,812.16 × 51,603.96
  4. Step 4: Simplify right side
    91,899.36x = 6,544,009,632.15
  5. Step 5: Solve for x
    x = 6,544,009,632.15/91,899.36
  6. Step 6: Final answer
    x = 71,208.44

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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.