Home / 50,830.12-76,211.13-19,628.92

Finding the Fourth Proportional to 50,830.12, 76,211.13 and 19,628.92

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Solution

The fourth proportional to 50,830.12, 76,211.13 and 19,628.92 is: 29,430.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,830.12 : 76,211.13 = 19,628.92 : x
  2. Step 2: Convert to fraction form
    50,830.12/76,211.13 = 19,628.92/x
  3. Step 3: Cross multiply
    50,830.12x = 76,211.13 × 19,628.92
  4. Step 4: Simplify right side
    50,830.12x = 1,495,942,173.88
  5. Step 5: Solve for x
    x = 1,495,942,173.88/50,830.12
  6. Step 6: Final answer
    x = 29,430.23

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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.