Home / 51,384.34-70,909.32-28,722.70

Finding the Fourth Proportional to 51,384.34, 70,909.32 and 28,722.70

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Solution

The fourth proportional to 51,384.34, 70,909.32 and 28,722.70 is: 39,636.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,384.34 : 70,909.32 = 28,722.70 : x
  2. Step 2: Convert to fraction form
    51,384.34/70,909.32 = 28,722.70/x
  3. Step 3: Cross multiply
    51,384.34x = 70,909.32 × 28,722.70
  4. Step 4: Simplify right side
    51,384.34x = 2,036,707,125.56
  5. Step 5: Solve for x
    x = 2,036,707,125.56/51,384.34
  6. Step 6: Final answer
    x = 39,636.73

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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.