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Finding the Fourth Proportional to 93,200.62, 128,629.54 and 54,970.98

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Solution

The fourth proportional to 93,200.62, 128,629.54 and 54,970.98 is: 75,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,200.62 : 128,629.54 = 54,970.98 : x
  2. Step 2: Convert to fraction form
    93,200.62/128,629.54 = 54,970.98/x
  3. Step 3: Cross multiply
    93,200.62x = 128,629.54 × 54,970.98
  4. Step 4: Simplify right side
    93,200.62x = 7,070,891,870.75
  5. Step 5: Solve for x
    x = 7,070,891,870.75/93,200.62
  6. Step 6: Final answer
    x = 75,867.43

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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.