Home / 91,098.36-136,471.86-51,534.36

Finding the Fourth Proportional to 91,098.36, 136,471.86 and 51,534.36

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Solution

The fourth proportional to 91,098.36, 136,471.86 and 51,534.36 is: 77,202.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,098.36 : 136,471.86 = 51,534.36 : x
  2. Step 2: Convert to fraction form
    91,098.36/136,471.86 = 51,534.36/x
  3. Step 3: Cross multiply
    91,098.36x = 136,471.86 × 51,534.36
  4. Step 4: Simplify right side
    91,098.36x = 7,032,989,963.11
  5. Step 5: Solve for x
    x = 7,032,989,963.11/91,098.36
  6. Step 6: Final answer
    x = 77,202.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.