Home / 51,799.04-71,489-29,138.99

Finding the Fourth Proportional to 51,799.04, 71,489 and 29,138.99

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Solution

The fourth proportional to 51,799.04, 71,489 and 29,138.99 is: 40,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,799.04 : 71,489 = 29,138.99 : x
  2. Step 2: Convert to fraction form
    51,799.04/71,489 = 29,138.99/x
  3. Step 3: Cross multiply
    51,799.04x = 71,489 × 29,138.99
  4. Step 4: Simplify right side
    51,799.04x = 2,083,116,898.67
  5. Step 5: Solve for x
    x = 2,083,116,898.67/51,799.04
  6. Step 6: Final answer
    x = 40,215.36

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1.5x scale

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.