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Finding the Fourth Proportional to 93,000.43, 128,350.62 and 52,709.87

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Solution

The fourth proportional to 93,000.43, 128,350.62 and 52,709.87 is: 72,745.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,000.43 : 128,350.62 = 52,709.87 : x
  2. Step 2: Convert to fraction form
    93,000.43/128,350.62 = 52,709.87/x
  3. Step 3: Cross multiply
    93,000.43x = 128,350.62 × 52,709.87
  4. Step 4: Simplify right side
    93,000.43x = 6,765,344,531.84
  5. Step 5: Solve for x
    x = 6,765,344,531.84/93,000.43
  6. Step 6: Final answer
    x = 72,745.30

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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.