Home / 51,363.24-70,881.12-28,395.42

Finding the Fourth Proportional to 51,363.24, 70,881.12 and 28,395.42

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Solution

The fourth proportional to 51,363.24, 70,881.12 and 28,395.42 is: 39,185.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,363.24 : 70,881.12 = 28,395.42 : x
  2. Step 2: Convert to fraction form
    51,363.24/70,881.12 = 28,395.42/x
  3. Step 3: Cross multiply
    51,363.24x = 70,881.12 × 28,395.42
  4. Step 4: Simplify right side
    51,363.24x = 2,012,699,172.47
  5. Step 5: Solve for x
    x = 2,012,699,172.47/51,363.24
  6. Step 6: Final answer
    x = 39,185.60

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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.