Home / 51,002.35-70,379.88-28,339.63

Finding the Fourth Proportional to 51,002.35, 70,379.88 and 28,339.63

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Solution

The fourth proportional to 51,002.35, 70,379.88 and 28,339.63 is: 39,106.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,002.35 : 70,379.88 = 28,339.63 : x
  2. Step 2: Convert to fraction form
    51,002.35/70,379.88 = 28,339.63/x
  3. Step 3: Cross multiply
    51,002.35x = 70,379.88 × 28,339.63
  4. Step 4: Simplify right side
    51,002.35x = 1,994,539,758.64
  5. Step 5: Solve for x
    x = 1,994,539,758.64/51,002.35
  6. Step 6: Final answer
    x = 39,106.82

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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.