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Finding the Fourth Proportional to 93,077, 128,436.54 and 52,777.88

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Solution

The fourth proportional to 93,077, 128,436.54 and 52,777.88 is: 72,827.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,077 : 128,436.54 = 52,777.88 : x
  2. Step 2: Convert to fraction form
    93,077/128,436.54 = 52,777.88/x
  3. Step 3: Cross multiply
    93,077x = 128,436.54 × 52,777.88
  4. Step 4: Simplify right side
    93,077x = 6,778,608,295.74
  5. Step 5: Solve for x
    x = 6,778,608,295.74/93,077
  6. Step 6: Final answer
    x = 72,827.96

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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.