Home / 105,482.49-145,567.21-57,734.82

Finding the Fourth Proportional to 105,482.49, 145,567.21 and 57,734.82

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Solution

The fourth proportional to 105,482.49, 145,567.21 and 57,734.82 is: 79,674.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,482.49 : 145,567.21 = 57,734.82 : x
  2. Step 2: Convert to fraction form
    105,482.49/145,567.21 = 57,734.82/x
  3. Step 3: Cross multiply
    105,482.49x = 145,567.21 × 57,734.82
  4. Step 4: Simplify right side
    105,482.49x = 8,404,295,758.99
  5. Step 5: Solve for x
    x = 8,404,295,758.99/105,482.49
  6. Step 6: Final answer
    x = 79,674.79

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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.