Home / 92,819.36-128,090.81-50,377.91

Finding the Fourth Proportional to 92,819.36, 128,090.81 and 50,377.91

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Solution

The fourth proportional to 92,819.36, 128,090.81 and 50,377.91 is: 69,521.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,819.36 : 128,090.81 = 50,377.91 : x
  2. Step 2: Convert to fraction form
    92,819.36/128,090.81 = 50,377.91/x
  3. Step 3: Cross multiply
    92,819.36x = 128,090.81 × 50,377.91
  4. Step 4: Simplify right side
    92,819.36x = 6,452,947,298.01
  5. Step 5: Solve for x
    x = 6,452,947,298.01/92,819.36
  6. Step 6: Final answer
    x = 69,521.57

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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.