Home / 57,312.45-85,937.18-19,869.18

Finding the Fourth Proportional to 57,312.45, 85,937.18 and 19,869.18

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Solution

The fourth proportional to 57,312.45, 85,937.18 and 19,869.18 is: 29,792.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,312.45 : 85,937.18 = 19,869.18 : x
  2. Step 2: Convert to fraction form
    57,312.45/85,937.18 = 19,869.18/x
  3. Step 3: Cross multiply
    57,312.45x = 85,937.18 × 19,869.18
  4. Step 4: Simplify right side
    57,312.45x = 1,707,501,198.77
  5. Step 5: Solve for x
    x = 1,707,501,198.77/57,312.45
  6. Step 6: Final answer
    x = 29,792.85

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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.