Home / 84,756.48-127,153.92-45,292.80

Finding the Fourth Proportional to 84,756.48, 127,153.92 and 45,292.80

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Solution

The fourth proportional to 84,756.48, 127,153.92 and 45,292.80 is: 67,949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,756.48 : 127,153.92 = 45,292.80 : x
  2. Step 2: Convert to fraction form
    84,756.48/127,153.92 = 45,292.80/x
  3. Step 3: Cross multiply
    84,756.48x = 127,153.92 × 45,292.80
  4. Step 4: Simplify right side
    84,756.48x = 5,759,157,067.78
  5. Step 5: Solve for x
    x = 5,759,157,067.78/84,756.48
  6. Step 6: Final answer
    x = 67,949.46

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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.