Home / 105,493.04-145,578.84-57,745.16

Finding the Fourth Proportional to 105,493.04, 145,578.84 and 57,745.16

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Solution

The fourth proportional to 105,493.04, 145,578.84 and 57,745.16 is: 79,687.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,493.04 : 145,578.84 = 57,745.16 : x
  2. Step 2: Convert to fraction form
    105,493.04/145,578.84 = 57,745.16/x
  3. Step 3: Cross multiply
    105,493.04x = 145,578.84 × 57,745.16
  4. Step 4: Simplify right side
    105,493.04x = 8,406,473,408.41
  5. Step 5: Solve for x
    x = 8,406,473,408.41/105,493.04
  6. Step 6: Final answer
    x = 79,687.47

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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.