Home / 47,666.76-71,500.54-12,128.11

Finding the Fourth Proportional to 47,666.76, 71,500.54 and 12,128.11

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Solution

The fourth proportional to 47,666.76, 71,500.54 and 12,128.11 is: 18,192.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,666.76 : 71,500.54 = 12,128.11 : x
  2. Step 2: Convert to fraction form
    47,666.76/71,500.54 = 12,128.11/x
  3. Step 3: Cross multiply
    47,666.76x = 71,500.54 × 12,128.11
  4. Step 4: Simplify right side
    47,666.76x = 867,166,414.18
  5. Step 5: Solve for x
    x = 867,166,414.18/47,666.76
  6. Step 6: Final answer
    x = 18,192.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.