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Finding the Fourth Proportional to 92,940.35, 128,258.84 and 50,499.59

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Solution

The fourth proportional to 92,940.35, 128,258.84 and 50,499.59 is: 69,690.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,940.35 : 128,258.84 = 50,499.59 : x
  2. Step 2: Convert to fraction form
    92,940.35/128,258.84 = 50,499.59/x
  3. Step 3: Cross multiply
    92,940.35x = 128,258.84 × 50,499.59
  4. Step 4: Simplify right side
    92,940.35x = 6,477,018,318.83
  5. Step 5: Solve for x
    x = 6,477,018,318.83/92,940.35
  6. Step 6: Final answer
    x = 69,690.06

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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.