Home / 92,406.72-138,595.68-30,076.80

Finding the Fourth Proportional to 92,406.72, 138,595.68 and 30,076.80

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Solution

The fourth proportional to 92,406.72, 138,595.68 and 30,076.80 is: 45,110.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,406.72 : 138,595.68 = 30,076.80 : x
  2. Step 2: Convert to fraction form
    92,406.72/138,595.68 = 30,076.80/x
  3. Step 3: Cross multiply
    92,406.72x = 138,595.68 × 30,076.80
  4. Step 4: Simplify right side
    92,406.72x = 4,168,514,548.22
  5. Step 5: Solve for x
    x = 4,168,514,548.22/92,406.72
  6. Step 6: Final answer
    x = 45,110.51

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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.