Home / 53,738.81-74,161.06-31,075.61

Finding the Fourth Proportional to 53,738.81, 74,161.06 and 31,075.61

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Solution

The fourth proportional to 53,738.81, 74,161.06 and 31,075.61 is: 42,885.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,738.81 : 74,161.06 = 31,075.61 : x
  2. Step 2: Convert to fraction form
    53,738.81/74,161.06 = 31,075.61/x
  3. Step 3: Cross multiply
    53,738.81x = 74,161.06 × 31,075.61
  4. Step 4: Simplify right side
    53,738.81x = 2,304,600,177.75
  5. Step 5: Solve for x
    x = 2,304,600,177.75/53,738.81
  6. Step 6: Final answer
    x = 42,885.21

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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.