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Finding the Fourth Proportional to 93,135.60, 128,519.96 and 50,693.20

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Solution

The fourth proportional to 93,135.60, 128,519.96 and 50,693.20 is: 69,952.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,135.60 : 128,519.96 = 50,693.20 : x
  2. Step 2: Convert to fraction form
    93,135.60/128,519.96 = 50,693.20/x
  3. Step 3: Cross multiply
    93,135.60x = 128,519.96 × 50,693.20
  4. Step 4: Simplify right side
    93,135.60x = 6,515,088,036.27
  5. Step 5: Solve for x
    x = 6,515,088,036.27/93,135.60
  6. Step 6: Final answer
    x = 69,952.71

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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.