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Finding the Fourth Proportional to 51,124.21, 70,550.03 and 28,463.21

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Solution

The fourth proportional to 51,124.21, 70,550.03 and 28,463.21 is: 39,278.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,124.21 : 70,550.03 = 28,463.21 : x
  2. Step 2: Convert to fraction form
    51,124.21/70,550.03 = 28,463.21/x
  3. Step 3: Cross multiply
    51,124.21x = 70,550.03 × 28,463.21
  4. Step 4: Simplify right side
    51,124.21x = 2,008,080,319.40
  5. Step 5: Solve for x
    x = 2,008,080,319.40/51,124.21
  6. Step 6: Final answer
    x = 39,278.47

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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.