Home / 57,961.05-86,916.50-20,014.32

Finding the Fourth Proportional to 57,961.05, 86,916.50 and 20,014.32

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Solution

The fourth proportional to 57,961.05, 86,916.50 and 20,014.32 is: 30,012.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,961.05 : 86,916.50 = 20,014.32 : x
  2. Step 2: Convert to fraction form
    57,961.05/86,916.50 = 20,014.32/x
  3. Step 3: Cross multiply
    57,961.05x = 86,916.50 × 20,014.32
  4. Step 4: Simplify right side
    57,961.05x = 1,739,574,109.63
  5. Step 5: Solve for x
    x = 1,739,574,109.63/57,961.05
  6. Step 6: Final answer
    x = 30,012.81

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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.