Home / 91,251.36-136,954.80-53,756.46

Finding the Fourth Proportional to 91,251.36, 136,954.80 and 53,756.46

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Solution

The fourth proportional to 91,251.36, 136,954.80 and 53,756.46 is: 80,680.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,251.36 : 136,954.80 = 53,756.46 : x
  2. Step 2: Convert to fraction form
    91,251.36/136,954.80 = 53,756.46/x
  3. Step 3: Cross multiply
    91,251.36x = 136,954.80 × 53,756.46
  4. Step 4: Simplify right side
    91,251.36x = 7,362,205,228.01
  5. Step 5: Solve for x
    x = 7,362,205,228.01/91,251.36
  6. Step 6: Final answer
    x = 80,680.50

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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.