Home / 52,719.54-79,068.36-19,430.96

Finding the Fourth Proportional to 52,719.54, 79,068.36 and 19,430.96

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Solution

The fourth proportional to 52,719.54, 79,068.36 and 19,430.96 is: 29,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,719.54 : 79,068.36 = 19,430.96 : x
  2. Step 2: Convert to fraction form
    52,719.54/79,068.36 = 19,430.96/x
  3. Step 3: Cross multiply
    52,719.54x = 79,068.36 × 19,430.96
  4. Step 4: Simplify right side
    52,719.54x = 1,536,374,140.43
  5. Step 5: Solve for x
    x = 1,536,374,140.43/52,719.54
  6. Step 6: Final answer
    x = 29,142.40

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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.