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Finding the Fourth Proportional to 93,003.60, 128,345.48 and 54,764.80

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Solution

The fourth proportional to 93,003.60, 128,345.48 and 54,764.80 is: 75,575.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,003.60 : 128,345.48 = 54,764.80 : x
  2. Step 2: Convert to fraction form
    93,003.60/128,345.48 = 54,764.80/x
  3. Step 3: Cross multiply
    93,003.60x = 128,345.48 × 54,764.80
  4. Step 4: Simplify right side
    93,003.60x = 7,028,814,543.10
  5. Step 5: Solve for x
    x = 7,028,814,543.10/93,003.60
  6. Step 6: Final answer
    x = 75,575.73

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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.