Home / 50,929.50-70,282.40-28,271.78

Finding the Fourth Proportional to 50,929.50, 70,282.40 and 28,271.78

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Solution

The fourth proportional to 50,929.50, 70,282.40 and 28,271.78 is: 39,014.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,929.50 : 70,282.40 = 28,271.78 : x
  2. Step 2: Convert to fraction form
    50,929.50/70,282.40 = 28,271.78/x
  3. Step 3: Cross multiply
    50,929.50x = 70,282.40 × 28,271.78
  4. Step 4: Simplify right side
    50,929.50x = 1,987,008,550.67
  5. Step 5: Solve for x
    x = 1,987,008,550.67/50,929.50
  6. Step 6: Final answer
    x = 39,014.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.