Home / 45,038.46-67,530.69-20,065.98

Finding the Fourth Proportional to 45,038.46, 67,530.69 and 20,065.98

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Solution

The fourth proportional to 45,038.46, 67,530.69 and 20,065.98 is: 30,086.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,038.46 : 67,530.69 = 20,065.98 : x
  2. Step 2: Convert to fraction form
    45,038.46/67,530.69 = 20,065.98/x
  3. Step 3: Cross multiply
    45,038.46x = 67,530.69 × 20,065.98
  4. Step 4: Simplify right side
    45,038.46x = 1,355,069,474.93
  5. Step 5: Solve for x
    x = 1,355,069,474.93/45,038.46
  6. Step 6: Final answer
    x = 30,086.94

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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.