Home / 51,238.55-70,709.58-28,579.02

Finding the Fourth Proportional to 51,238.55, 70,709.58 and 28,579.02

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Solution

The fourth proportional to 51,238.55, 70,709.58 and 28,579.02 is: 39,439.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,238.55 : 70,709.58 = 28,579.02 : x
  2. Step 2: Convert to fraction form
    51,238.55/70,709.58 = 28,579.02/x
  3. Step 3: Cross multiply
    51,238.55x = 70,709.58 × 28,579.02
  4. Step 4: Simplify right side
    51,238.55x = 2,020,810,501.01
  5. Step 5: Solve for x
    x = 2,020,810,501.01/51,238.55
  6. Step 6: Final answer
    x = 39,439.26

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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.