Home / 86,921.17-130,401.29-46,939.26

Finding the Fourth Proportional to 86,921.17, 130,401.29 and 46,939.26

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Solution

The fourth proportional to 86,921.17, 130,401.29 and 46,939.26 is: 70,419.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,921.17 : 130,401.29 = 46,939.26 : x
  2. Step 2: Convert to fraction form
    86,921.17/130,401.29 = 46,939.26/x
  3. Step 3: Cross multiply
    86,921.17x = 130,401.29 × 46,939.26
  4. Step 4: Simplify right side
    86,921.17x = 6,120,940,662.00
  5. Step 5: Solve for x
    x = 6,120,940,662.00/86,921.17
  6. Step 6: Final answer
    x = 70,419.45

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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.