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Finding the Fourth Proportional to 57,030.60, 85,383.90 and 53,927.40

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Solution

The fourth proportional to 57,030.60, 85,383.90 and 53,927.40 is: 80,737.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,030.60 : 85,383.90 = 53,927.40 : x
  2. Step 2: Convert to fraction form
    57,030.60/85,383.90 = 53,927.40/x
  3. Step 3: Cross multiply
    57,030.60x = 85,383.90 × 53,927.40
  4. Step 4: Simplify right side
    57,030.60x = 4,604,531,728.86
  5. Step 5: Solve for x
    x = 4,604,531,728.86/57,030.60
  6. Step 6: Final answer
    x = 80,737.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.