Home / 51,987.33-77,980.32-12,544.11

Finding the Fourth Proportional to 51,987.33, 77,980.32 and 12,544.11

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Solution

The fourth proportional to 51,987.33, 77,980.32 and 12,544.11 is: 18,816.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,987.33 : 77,980.32 = 12,544.11 : x
  2. Step 2: Convert to fraction form
    51,987.33/77,980.32 = 12,544.11/x
  3. Step 3: Cross multiply
    51,987.33x = 77,980.32 × 12,544.11
  4. Step 4: Simplify right side
    51,987.33x = 978,193,711.92
  5. Step 5: Solve for x
    x = 978,193,711.92/51,987.33
  6. Step 6: Final answer
    x = 18,816.00

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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.