Home / 91,006.94-136,509.06-55,478.72

Finding the Fourth Proportional to 91,006.94, 136,509.06 and 55,478.72

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Solution

The fourth proportional to 91,006.94, 136,509.06 and 55,478.72 is: 83,217.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,006.94 : 136,509.06 = 55,478.72 : x
  2. Step 2: Convert to fraction form
    91,006.94/136,509.06 = 55,478.72/x
  3. Step 3: Cross multiply
    91,006.94x = 136,509.06 × 55,478.72
  4. Step 4: Simplify right side
    91,006.94x = 7,573,347,917.20
  5. Step 5: Solve for x
    x = 7,573,347,917.20/91,006.94
  6. Step 6: Final answer
    x = 83,217.26

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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.