Home / 76,656.03-114,975.27-20,500.51

Finding the Fourth Proportional to 76,656.03, 114,975.27 and 20,500.51

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Solution

The fourth proportional to 76,656.03, 114,975.27 and 20,500.51 is: 30,748.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,656.03 : 114,975.27 = 20,500.51 : x
  2. Step 2: Convert to fraction form
    76,656.03/114,975.27 = 20,500.51/x
  3. Step 3: Cross multiply
    76,656.03x = 114,975.27 × 20,500.51
  4. Step 4: Simplify right side
    76,656.03x = 2,357,051,672.39
  5. Step 5: Solve for x
    x = 2,357,051,672.39/76,656.03
  6. Step 6: Final answer
    x = 30,748.42

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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.