Home / 86,919.39-130,379.09-55,951.47

Finding the Fourth Proportional to 86,919.39, 130,379.09 and 55,951.47

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Solution

The fourth proportional to 86,919.39, 130,379.09 and 55,951.47 is: 83,927.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,919.39 : 130,379.09 = 55,951.47 : x
  2. Step 2: Convert to fraction form
    86,919.39/130,379.09 = 55,951.47/x
  3. Step 3: Cross multiply
    86,919.39x = 130,379.09 × 55,951.47
  4. Step 4: Simplify right side
    86,919.39x = 7,294,901,463.00
  5. Step 5: Solve for x
    x = 7,294,901,463.00/86,919.39
  6. Step 6: Final answer
    x = 83,927.21

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1.5x scale

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.