Home / 91,377.76-136,973.28-51,851.36

Finding the Fourth Proportional to 91,377.76, 136,973.28 and 51,851.36

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Solution

The fourth proportional to 91,377.76, 136,973.28 and 51,851.36 is: 77,724.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,377.76 : 136,973.28 = 51,851.36 : x
  2. Step 2: Convert to fraction form
    91,377.76/136,973.28 = 51,851.36/x
  3. Step 3: Cross multiply
    91,377.76x = 136,973.28 × 51,851.36
  4. Step 4: Simplify right side
    91,377.76x = 7,102,250,851.66
  5. Step 5: Solve for x
    x = 7,102,250,851.66/91,377.76
  6. Step 6: Final answer
    x = 77,724.06

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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.