Home / 52,688.21-79,063.43-19,431.50

Finding the Fourth Proportional to 52,688.21, 79,063.43 and 19,431.50

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Solution

The fourth proportional to 52,688.21, 79,063.43 and 19,431.50 is: 29,158.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,688.21 : 79,063.43 = 19,431.50 : x
  2. Step 2: Convert to fraction form
    52,688.21/79,063.43 = 19,431.50/x
  3. Step 3: Cross multiply
    52,688.21x = 79,063.43 × 19,431.50
  4. Step 4: Simplify right side
    52,688.21x = 1,536,320,547.57
  5. Step 5: Solve for x
    x = 1,536,320,547.57/52,688.21
  6. Step 6: Final answer
    x = 29,158.72

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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.