Home / 86,044.50-128,790.36-45,963.27

Finding the Fourth Proportional to 86,044.50, 128,790.36 and 45,963.27

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Solution

The fourth proportional to 86,044.50, 128,790.36 and 45,963.27 is: 68,797.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,044.50 : 128,790.36 = 45,963.27 : x
  2. Step 2: Convert to fraction form
    86,044.50/128,790.36 = 45,963.27/x
  3. Step 3: Cross multiply
    86,044.50x = 128,790.36 × 45,963.27
  4. Step 4: Simplify right side
    86,044.50x = 5,919,626,090.08
  5. Step 5: Solve for x
    x = 5,919,626,090.08/86,044.50
  6. Step 6: Final answer
    x = 68,797.26

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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.