Home / 84,816.80-127,239.60-45,363.20

Finding the Fourth Proportional to 84,816.80, 127,239.60 and 45,363.20

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Solution

The fourth proportional to 84,816.80, 127,239.60 and 45,363.20 is: 68,052.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,816.80 : 127,239.60 = 45,363.20 : x
  2. Step 2: Convert to fraction form
    84,816.80/127,239.60 = 45,363.20/x
  3. Step 3: Cross multiply
    84,816.80x = 127,239.60 × 45,363.20
  4. Step 4: Simplify right side
    84,816.80x = 5,771,995,422.72
  5. Step 5: Solve for x
    x = 5,771,995,422.72/84,816.80
  6. Step 6: Final answer
    x = 68,052.50

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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.