Home / 84,778.43-127,194.38-53,210.45

Finding the Fourth Proportional to 84,778.43, 127,194.38 and 53,210.45

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Solution

The fourth proportional to 84,778.43, 127,194.38 and 53,210.45 is: 79,832.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,778.43 : 127,194.38 = 53,210.45 : x
  2. Step 2: Convert to fraction form
    84,778.43/127,194.38 = 53,210.45/x
  3. Step 3: Cross multiply
    84,778.43x = 127,194.38 × 53,210.45
  4. Step 4: Simplify right side
    84,778.43x = 6,768,069,295.25
  5. Step 5: Solve for x
    x = 6,768,069,295.25/84,778.43
  6. Step 6: Final answer
    x = 79,832.45

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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.