Home / 93,450.06-128,956.20-51,000.36

Finding the Fourth Proportional to 93,450.06, 128,956.20 and 51,000.36

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Solution

The fourth proportional to 93,450.06, 128,956.20 and 51,000.36 is: 70,377.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,450.06 : 128,956.20 = 51,000.36 : x
  2. Step 2: Convert to fraction form
    93,450.06/128,956.20 = 51,000.36/x
  3. Step 3: Cross multiply
    93,450.06x = 128,956.20 × 51,000.36
  4. Step 4: Simplify right side
    93,450.06x = 6,576,812,624.23
  5. Step 5: Solve for x
    x = 6,576,812,624.23/93,450.06
  6. Step 6: Final answer
    x = 70,377.83

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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.