Home / 74,511.09-111,733.83-39,442.55

Finding the Fourth Proportional to 74,511.09, 111,733.83 and 39,442.55

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Solution

The fourth proportional to 74,511.09, 111,733.83 and 39,442.55 is: 59,146.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,511.09 : 111,733.83 = 39,442.55 : x
  2. Step 2: Convert to fraction form
    74,511.09/111,733.83 = 39,442.55/x
  3. Step 3: Cross multiply
    74,511.09x = 111,733.83 × 39,442.55
  4. Step 4: Simplify right side
    74,511.09x = 4,407,066,617.80
  5. Step 5: Solve for x
    x = 4,407,066,617.80/74,511.09
  6. Step 6: Final answer
    x = 59,146.45

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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.