Home / 53,738.40-74,168.42-31,073.80

Finding the Fourth Proportional to 53,738.40, 74,168.42 and 31,073.80

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Solution

The fourth proportional to 53,738.40, 74,168.42 and 31,073.80 is: 42,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,738.40 : 74,168.42 = 31,073.80 : x
  2. Step 2: Convert to fraction form
    53,738.40/74,168.42 = 31,073.80/x
  3. Step 3: Cross multiply
    53,738.40x = 74,168.42 × 31,073.80
  4. Step 4: Simplify right side
    53,738.40x = 2,304,694,649.40
  5. Step 5: Solve for x
    x = 2,304,694,649.40/53,738.40
  6. Step 6: Final answer
    x = 42,887.30

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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.