Home / 86,708.94-129,927.33-51,629.46

Finding the Fourth Proportional to 86,708.94, 129,927.33 and 51,629.46

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Solution

The fourth proportional to 86,708.94, 129,927.33 and 51,629.46 is: 77,363.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,708.94 : 129,927.33 = 51,629.46 : x
  2. Step 2: Convert to fraction form
    86,708.94/129,927.33 = 51,629.46/x
  3. Step 3: Cross multiply
    86,708.94x = 129,927.33 × 51,629.46
  4. Step 4: Simplify right side
    86,708.94x = 6,708,077,887.14
  5. Step 5: Solve for x
    x = 6,708,077,887.14/86,708.94
  6. Step 6: Final answer
    x = 77,363.16

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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.