Home / 51,564.99-71,156.16-28,900.11

Finding the Fourth Proportional to 51,564.99, 71,156.16 and 28,900.11

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Solution

The fourth proportional to 51,564.99, 71,156.16 and 28,900.11 is: 39,880.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,564.99 : 71,156.16 = 28,900.11 : x
  2. Step 2: Convert to fraction form
    51,564.99/71,156.16 = 28,900.11/x
  3. Step 3: Cross multiply
    51,564.99x = 71,156.16 × 28,900.11
  4. Step 4: Simplify right side
    51,564.99x = 2,056,420,851.18
  5. Step 5: Solve for x
    x = 2,056,420,851.18/51,564.99
  6. Step 6: Final answer
    x = 39,880.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.