Home / 47,399.79-71,112.65-20,740.93

Finding the Fourth Proportional to 47,399.79, 71,112.65 and 20,740.93

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Solution

The fourth proportional to 47,399.79, 71,112.65 and 20,740.93 is: 31,117.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,399.79 : 71,112.65 = 20,740.93 : x
  2. Step 2: Convert to fraction form
    47,399.79/71,112.65 = 20,740.93/x
  3. Step 3: Cross multiply
    47,399.79x = 71,112.65 × 20,740.93
  4. Step 4: Simplify right side
    47,399.79x = 1,474,942,495.76
  5. Step 5: Solve for x
    x = 1,474,942,495.76/47,399.79
  6. Step 6: Final answer
    x = 31,117.07

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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.