Home / 51,803.66-77,693.96-20,214.56

Finding the Fourth Proportional to 51,803.66, 77,693.96 and 20,214.56

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Solution

The fourth proportional to 51,803.66, 77,693.96 and 20,214.56 is: 30,317.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,803.66 : 77,693.96 = 20,214.56 : x
  2. Step 2: Convert to fraction form
    51,803.66/77,693.96 = 20,214.56/x
  3. Step 3: Cross multiply
    51,803.66x = 77,693.96 × 20,214.56
  4. Step 4: Simplify right side
    51,803.66x = 1,570,549,216.06
  5. Step 5: Solve for x
    x = 1,570,549,216.06/51,803.66
  6. Step 6: Final answer
    x = 30,317.34

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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.