Home / 51,987.42-77,980.46-12,544.34

Finding the Fourth Proportional to 51,987.42, 77,980.46 and 12,544.34

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Solution

The fourth proportional to 51,987.42, 77,980.46 and 12,544.34 is: 18,816.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,987.42 : 77,980.46 = 12,544.34 : x
  2. Step 2: Convert to fraction form
    51,987.42/77,980.46 = 12,544.34/x
  3. Step 3: Cross multiply
    51,987.42x = 77,980.46 × 12,544.34
  4. Step 4: Simplify right side
    51,987.42x = 978,212,950.97
  5. Step 5: Solve for x
    x = 978,212,950.97/51,987.42
  6. Step 6: Final answer
    x = 18,816.34

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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.