Home / 51,179.52-70,626.64-28,518.40

Finding the Fourth Proportional to 51,179.52, 70,626.64 and 28,518.40

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Solution

The fourth proportional to 51,179.52, 70,626.64 and 28,518.40 is: 39,354.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,179.52 : 70,626.64 = 28,518.40 : x
  2. Step 2: Convert to fraction form
    51,179.52/70,626.64 = 28,518.40/x
  3. Step 3: Cross multiply
    51,179.52x = 70,626.64 × 28,518.40
  4. Step 4: Simplify right side
    51,179.52x = 2,014,158,770.18
  5. Step 5: Solve for x
    x = 2,014,158,770.18/51,179.52
  6. Step 6: Final answer
    x = 39,354.78

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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.