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Finding the Fourth Proportional to 93,138.91, 128,528.12 and 52,850.27

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Solution

The fourth proportional to 93,138.91, 128,528.12 and 52,850.27 is: 72,931.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,138.91 : 128,528.12 = 52,850.27 : x
  2. Step 2: Convert to fraction form
    93,138.91/128,528.12 = 52,850.27/x
  3. Step 3: Cross multiply
    93,138.91x = 128,528.12 × 52,850.27
  4. Step 4: Simplify right side
    93,138.91x = 6,792,745,844.59
  5. Step 5: Solve for x
    x = 6,792,745,844.59/93,138.91
  6. Step 6: Final answer
    x = 72,931.34

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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.