Home / 79,708.19-109,987.75-45,714.92

Finding the Fourth Proportional to 79,708.19, 109,987.75 and 45,714.92

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Solution

The fourth proportional to 79,708.19, 109,987.75 and 45,714.92 is: 63,081.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,708.19 : 109,987.75 = 45,714.92 : x
  2. Step 2: Convert to fraction form
    79,708.19/109,987.75 = 45,714.92/x
  3. Step 3: Cross multiply
    79,708.19x = 109,987.75 × 45,714.92
  4. Step 4: Simplify right side
    79,708.19x = 5,028,081,192.23
  5. Step 5: Solve for x
    x = 5,028,081,192.23/79,708.19
  6. Step 6: Final answer
    x = 63,081.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.