Home / 80,929.44-111,680.64-45,119.34

Finding the Fourth Proportional to 80,929.44, 111,680.64 and 45,119.34

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Solution

The fourth proportional to 80,929.44, 111,680.64 and 45,119.34 is: 62,263.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,929.44 : 111,680.64 = 45,119.34 : x
  2. Step 2: Convert to fraction form
    80,929.44/111,680.64 = 45,119.34/x
  3. Step 3: Cross multiply
    80,929.44x = 111,680.64 × 45,119.34
  4. Step 4: Simplify right side
    80,929.44x = 5,038,956,767.58
  5. Step 5: Solve for x
    x = 5,038,956,767.58/80,929.44
  6. Step 6: Final answer
    x = 62,263.58

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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.