Home / 45,420.54-67,840.09-41,139.85

Finding the Fourth Proportional to 45,420.54, 67,840.09 and 41,139.85

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Solution

The fourth proportional to 45,420.54, 67,840.09 and 41,139.85 is: 61,446.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420.54 : 67,840.09 = 41,139.85 : x
  2. Step 2: Convert to fraction form
    45,420.54/67,840.09 = 41,139.85/x
  3. Step 3: Cross multiply
    45,420.54x = 67,840.09 × 41,139.85
  4. Step 4: Simplify right side
    45,420.54x = 2,790,931,126.59
  5. Step 5: Solve for x
    x = 2,790,931,126.59/45,420.54
  6. Step 6: Final answer
    x = 61,446.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.