Home / 52,136.08-78,192.12-31,082.05

Finding the Fourth Proportional to 52,136.08, 78,192.12 and 31,082.05

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Solution

The fourth proportional to 52,136.08, 78,192.12 and 31,082.05 is: 46,615.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,136.08 : 78,192.12 = 31,082.05 : x
  2. Step 2: Convert to fraction form
    52,136.08/78,192.12 = 31,082.05/x
  3. Step 3: Cross multiply
    52,136.08x = 78,192.12 × 31,082.05
  4. Step 4: Simplify right side
    52,136.08x = 2,430,371,383.45
  5. Step 5: Solve for x
    x = 2,430,371,383.45/52,136.08
  6. Step 6: Final answer
    x = 46,615.92

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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.