Home / 92,971.26-128,301.12-50,529.78

Finding the Fourth Proportional to 92,971.26, 128,301.12 and 50,529.78

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Solution

The fourth proportional to 92,971.26, 128,301.12 and 50,529.78 is: 69,731.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,971.26 : 128,301.12 = 50,529.78 : x
  2. Step 2: Convert to fraction form
    92,971.26/128,301.12 = 50,529.78/x
  3. Step 3: Cross multiply
    92,971.26x = 128,301.12 × 50,529.78
  4. Step 4: Simplify right side
    92,971.26x = 6,483,027,367.35
  5. Step 5: Solve for x
    x = 6,483,027,367.35/92,971.26
  6. Step 6: Final answer
    x = 69,731.52

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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.