Home / 52,719.38-79,066.65-19,421.36

Finding the Fourth Proportional to 52,719.38, 79,066.65 and 19,421.36

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Solution

The fourth proportional to 52,719.38, 79,066.65 and 19,421.36 is: 29,127.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,719.38 : 79,066.65 = 19,421.36 : x
  2. Step 2: Convert to fraction form
    52,719.38/79,066.65 = 19,421.36/x
  3. Step 3: Cross multiply
    52,719.38x = 79,066.65 × 19,421.36
  4. Step 4: Simplify right side
    52,719.38x = 1,535,581,873.64
  5. Step 5: Solve for x
    x = 1,535,581,873.64/52,719.38
  6. Step 6: Final answer
    x = 29,127.46

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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.