Home / 53,146.30-73,347.07-39,694.20

Finding the Fourth Proportional to 53,146.30, 73,347.07 and 39,694.20

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Solution

The fourth proportional to 53,146.30, 73,347.07 and 39,694.20 is: 54,781.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,146.30 : 73,347.07 = 39,694.20 : x
  2. Step 2: Convert to fraction form
    53,146.30/73,347.07 = 39,694.20/x
  3. Step 3: Cross multiply
    53,146.30x = 73,347.07 × 39,694.20
  4. Step 4: Simplify right side
    53,146.30x = 2,911,453,265.99
  5. Step 5: Solve for x
    x = 2,911,453,265.99/53,146.30
  6. Step 6: Final answer
    x = 54,781.86

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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.