Home / 40,090.36-60,123.38-13,779.96

Finding the Fourth Proportional to 40,090.36, 60,123.38 and 13,779.96

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Solution

The fourth proportional to 40,090.36, 60,123.38 and 13,779.96 is: 20,665.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,090.36 : 60,123.38 = 13,779.96 : x
  2. Step 2: Convert to fraction form
    40,090.36/60,123.38 = 13,779.96/x
  3. Step 3: Cross multiply
    40,090.36x = 60,123.38 × 13,779.96
  4. Step 4: Simplify right side
    40,090.36x = 828,497,771.46
  5. Step 5: Solve for x
    x = 828,497,771.46/40,090.36
  6. Step 6: Final answer
    x = 20,665.76

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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.