Home / 45,129.31-67,717.01-30,146.67

Finding the Fourth Proportional to 45,129.31, 67,717.01 and 30,146.67

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Solution

The fourth proportional to 45,129.31, 67,717.01 and 30,146.67 is: 45,235.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,129.31 : 67,717.01 = 30,146.67 : x
  2. Step 2: Convert to fraction form
    45,129.31/67,717.01 = 30,146.67/x
  3. Step 3: Cross multiply
    45,129.31x = 67,717.01 × 30,146.67
  4. Step 4: Simplify right side
    45,129.31x = 2,041,442,429.22
  5. Step 5: Solve for x
    x = 2,041,442,429.22/45,129.31
  6. Step 6: Final answer
    x = 45,235.40

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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.