Home / 93,069.90-128,439.18-50,631.30

Finding the Fourth Proportional to 93,069.90, 128,439.18 and 50,631.30

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Solution

The fourth proportional to 93,069.90, 128,439.18 and 50,631.30 is: 69,872.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,069.90 : 128,439.18 = 50,631.30 : x
  2. Step 2: Convert to fraction form
    93,069.90/128,439.18 = 50,631.30/x
  3. Step 3: Cross multiply
    93,069.90x = 128,439.18 × 50,631.30
  4. Step 4: Simplify right side
    93,069.90x = 6,503,042,654.33
  5. Step 5: Solve for x
    x = 6,503,042,654.33/93,069.90
  6. Step 6: Final answer
    x = 69,872.67

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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.