Home / 86,853.06-130,239.50-36,906.54

Finding the Fourth Proportional to 86,853.06, 130,239.50 and 36,906.54

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Solution

The fourth proportional to 86,853.06, 130,239.50 and 36,906.54 is: 55,342.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,853.06 : 130,239.50 = 36,906.54 : x
  2. Step 2: Convert to fraction form
    86,853.06/130,239.50 = 36,906.54/x
  3. Step 3: Cross multiply
    86,853.06x = 130,239.50 × 36,906.54
  4. Step 4: Simplify right side
    86,853.06x = 4,806,688,643.40
  5. Step 5: Solve for x
    x = 4,806,688,643.40/86,853.06
  6. Step 6: Final answer
    x = 55,342.77

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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.