Home / 91,266.09-125,947.64-50,981.55

Finding the Fourth Proportional to 91,266.09, 125,947.64 and 50,981.55

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Solution

The fourth proportional to 91,266.09, 125,947.64 and 50,981.55 is: 70,354.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,266.09 : 125,947.64 = 50,981.55 : x
  2. Step 2: Convert to fraction form
    91,266.09/125,947.64 = 50,981.55/x
  3. Step 3: Cross multiply
    91,266.09x = 125,947.64 × 50,981.55
  4. Step 4: Simplify right side
    91,266.09x = 6,421,005,021.40
  5. Step 5: Solve for x
    x = 6,421,005,021.40/91,266.09
  6. Step 6: Final answer
    x = 70,354.78

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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.