Home / 42,672.08-63,940.44-30,930.32

Finding the Fourth Proportional to 42,672.08, 63,940.44 and 30,930.32

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Solution

The fourth proportional to 42,672.08, 63,940.44 and 30,930.32 is: 46,346.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,672.08 : 63,940.44 = 30,930.32 : x
  2. Step 2: Convert to fraction form
    42,672.08/63,940.44 = 30,930.32/x
  3. Step 3: Cross multiply
    42,672.08x = 63,940.44 × 30,930.32
  4. Step 4: Simplify right side
    42,672.08x = 1,977,698,270.14
  5. Step 5: Solve for x
    x = 1,977,698,270.14/42,672.08
  6. Step 6: Final answer
    x = 46,346.42

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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.