Home / 93,157.38-128,557.09-50,715.91

Finding the Fourth Proportional to 93,157.38, 128,557.09 and 50,715.91

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Solution

The fourth proportional to 93,157.38, 128,557.09 and 50,715.91 is: 69,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,157.38 : 128,557.09 = 50,715.91 : x
  2. Step 2: Convert to fraction form
    93,157.38/128,557.09 = 50,715.91/x
  3. Step 3: Cross multiply
    93,157.38x = 128,557.09 × 50,715.91
  4. Step 4: Simplify right side
    93,157.38x = 6,519,889,806.30
  5. Step 5: Solve for x
    x = 6,519,889,806.30/93,157.38
  6. Step 6: Final answer
    x = 69,987.90

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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.