Home / 42,190.08-63,302.60-18,485.40

Finding the Fourth Proportional to 42,190.08, 63,302.60 and 18,485.40

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Solution

The fourth proportional to 42,190.08, 63,302.60 and 18,485.40 is: 27,735.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,190.08 : 63,302.60 = 18,485.40 : x
  2. Step 2: Convert to fraction form
    42,190.08/63,302.60 = 18,485.40/x
  3. Step 3: Cross multiply
    42,190.08x = 63,302.60 × 18,485.40
  4. Step 4: Simplify right side
    42,190.08x = 1,170,173,882.04
  5. Step 5: Solve for x
    x = 1,170,173,882.04/42,190.08
  6. Step 6: Final answer
    x = 27,735.76

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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.