Home / 48,090.70-72,140.15-12,556.73

Finding the Fourth Proportional to 48,090.70, 72,140.15 and 12,556.73

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Solution

The fourth proportional to 48,090.70, 72,140.15 and 12,556.73 is: 18,836.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,090.70 : 72,140.15 = 12,556.73 : x
  2. Step 2: Convert to fraction form
    48,090.70/72,140.15 = 12,556.73/x
  3. Step 3: Cross multiply
    48,090.70x = 72,140.15 × 12,556.73
  4. Step 4: Simplify right side
    48,090.70x = 905,844,385.71
  5. Step 5: Solve for x
    x = 905,844,385.71/48,090.70
  6. Step 6: Final answer
    x = 18,836.17

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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.