Home / 84,976.54-127,457.44-39,987.22

Finding the Fourth Proportional to 84,976.54, 127,457.44 and 39,987.22

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Solution

The fourth proportional to 84,976.54, 127,457.44 and 39,987.22 is: 59,977.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,976.54 : 127,457.44 = 39,987.22 : x
  2. Step 2: Convert to fraction form
    84,976.54/127,457.44 = 39,987.22/x
  3. Step 3: Cross multiply
    84,976.54x = 127,457.44 × 39,987.22
  4. Step 4: Simplify right side
    84,976.54x = 5,096,668,693.92
  5. Step 5: Solve for x
    x = 5,096,668,693.92/84,976.54
  6. Step 6: Final answer
    x = 59,977.36

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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.