Home / 105,578.80-145,698.75-57,833.84

Finding the Fourth Proportional to 105,578.80, 145,698.75 and 57,833.84

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Solution

The fourth proportional to 105,578.80, 145,698.75 and 57,833.84 is: 79,810.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,578.80 : 145,698.75 = 57,833.84 : x
  2. Step 2: Convert to fraction form
    105,578.80/145,698.75 = 57,833.84/x
  3. Step 3: Cross multiply
    105,578.80x = 145,698.75 × 57,833.84
  4. Step 4: Simplify right side
    105,578.80x = 8,426,318,559.95
  5. Step 5: Solve for x
    x = 8,426,318,559.95/105,578.80
  6. Step 6: Final answer
    x = 79,810.71

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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.