Home / 91,628.86-137,496.15-49,509.06

Finding the Fourth Proportional to 91,628.86, 137,496.15 and 49,509.06

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Solution

The fourth proportional to 91,628.86, 137,496.15 and 49,509.06 is: 74,292.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,628.86 : 137,496.15 = 49,509.06 : x
  2. Step 2: Convert to fraction form
    91,628.86/137,496.15 = 49,509.06/x
  3. Step 3: Cross multiply
    91,628.86x = 137,496.15 × 49,509.06
  4. Step 4: Simplify right side
    91,628.86x = 6,807,305,140.12
  5. Step 5: Solve for x
    x = 6,807,305,140.12/91,628.86
  6. Step 6: Final answer
    x = 74,292.15

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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.