Home / 51,299.08-70,783.96-28,636.90

Finding the Fourth Proportional to 51,299.08, 70,783.96 and 28,636.90

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Solution

The fourth proportional to 51,299.08, 70,783.96 and 28,636.90 is: 39,514.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,299.08 : 70,783.96 = 28,636.90 : x
  2. Step 2: Convert to fraction form
    51,299.08/70,783.96 = 28,636.90/x
  3. Step 3: Cross multiply
    51,299.08x = 70,783.96 × 28,636.90
  4. Step 4: Simplify right side
    51,299.08x = 2,027,033,184.12
  5. Step 5: Solve for x
    x = 2,027,033,184.12/51,299.08
  6. Step 6: Final answer
    x = 39,514.03

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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.