Home / 51,220.46-70,684.99-28,558.78

Finding the Fourth Proportional to 51,220.46, 70,684.99 and 28,558.78

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Solution

The fourth proportional to 51,220.46, 70,684.99 and 28,558.78 is: 39,411.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,220.46 : 70,684.99 = 28,558.78 : x
  2. Step 2: Convert to fraction form
    51,220.46/70,684.99 = 28,558.78/x
  3. Step 3: Cross multiply
    51,220.46x = 70,684.99 × 28,558.78
  4. Step 4: Simplify right side
    51,220.46x = 2,018,677,078.71
  5. Step 5: Solve for x
    x = 2,018,677,078.71/51,220.46
  6. Step 6: Final answer
    x = 39,411.54

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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.