Home / 30,135.02-45,203.20-7,950.62

Finding the Fourth Proportional to 30,135.02, 45,203.20 and 7,950.62

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Solution

The fourth proportional to 30,135.02, 45,203.20 and 7,950.62 is: 11,926.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,135.02 : 45,203.20 = 7,950.62 : x
  2. Step 2: Convert to fraction form
    30,135.02/45,203.20 = 7,950.62/x
  3. Step 3: Cross multiply
    30,135.02x = 45,203.20 × 7,950.62
  4. Step 4: Simplify right side
    30,135.02x = 359,393,559.12
  5. Step 5: Solve for x
    x = 359,393,559.12/30,135.02
  6. Step 6: Final answer
    x = 11,926.11

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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.