Home / 77,899.40-116,849.04-18,735.04

Finding the Fourth Proportional to 77,899.40, 116,849.04 and 18,735.04

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Solution

The fourth proportional to 77,899.40, 116,849.04 and 18,735.04 is: 28,102.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,899.40 : 116,849.04 = 18,735.04 : x
  2. Step 2: Convert to fraction form
    77,899.40/116,849.04 = 18,735.04/x
  3. Step 3: Cross multiply
    77,899.40x = 116,849.04 × 18,735.04
  4. Step 4: Simplify right side
    77,899.40x = 2,189,171,438.36
  5. Step 5: Solve for x
    x = 2,189,171,438.36/77,899.40
  6. Step 6: Final answer
    x = 28,102.55

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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.