Home / 52,124.10-78,185.46-12,681.25

Finding the Fourth Proportional to 52,124.10, 78,185.46 and 12,681.25

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Solution

The fourth proportional to 52,124.10, 78,185.46 and 12,681.25 is: 19,021.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,124.10 : 78,185.46 = 12,681.25 : x
  2. Step 2: Convert to fraction form
    52,124.10/78,185.46 = 12,681.25/x
  3. Step 3: Cross multiply
    52,124.10x = 78,185.46 × 12,681.25
  4. Step 4: Simplify right side
    52,124.10x = 991,489,364.63
  5. Step 5: Solve for x
    x = 991,489,364.63/52,124.10
  6. Step 6: Final answer
    x = 19,021.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.