Home / 91,247.64-125,852.36-78,522.27

Finding the Fourth Proportional to 91,247.64, 125,852.36 and 78,522.27

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Solution

The fourth proportional to 91,247.64, 125,852.36 and 78,522.27 is: 108,301.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,247.64 : 125,852.36 = 78,522.27 : x
  2. Step 2: Convert to fraction form
    91,247.64/125,852.36 = 78,522.27/x
  3. Step 3: Cross multiply
    91,247.64x = 125,852.36 × 78,522.27
  4. Step 4: Simplify right side
    91,247.64x = 9,882,212,599.45
  5. Step 5: Solve for x
    x = 9,882,212,599.45/91,247.64
  6. Step 6: Final answer
    x = 108,301.02

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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.