Home / 80,749.36-120,973.38-58,508.38

Finding the Fourth Proportional to 80,749.36, 120,973.38 and 58,508.38

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Solution

The fourth proportional to 80,749.36, 120,973.38 and 58,508.38 is: 87,653.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,749.36 : 120,973.38 = 58,508.38 : x
  2. Step 2: Convert to fraction form
    80,749.36/120,973.38 = 58,508.38/x
  3. Step 3: Cross multiply
    80,749.36x = 120,973.38 × 58,508.38
  4. Step 4: Simplify right side
    80,749.36x = 7,077,956,486.92
  5. Step 5: Solve for x
    x = 7,077,956,486.92/80,749.36
  6. Step 6: Final answer
    x = 87,653.41

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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.