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Finding the Fourth Proportional to 51,230.25, 70,698.29 and 28,874.25

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Solution

The fourth proportional to 51,230.25, 70,698.29 and 28,874.25 is: 39,846.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,230.25 : 70,698.29 = 28,874.25 : x
  2. Step 2: Convert to fraction form
    51,230.25/70,698.29 = 28,874.25/x
  3. Step 3: Cross multiply
    51,230.25x = 70,698.29 × 28,874.25
  4. Step 4: Simplify right side
    51,230.25x = 2,041,359,955.66
  5. Step 5: Solve for x
    x = 2,041,359,955.66/51,230.25
  6. Step 6: Final answer
    x = 39,846.77

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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.