Home / 51,400.87-70,936.73-28,739.40

Finding the Fourth Proportional to 51,400.87, 70,936.73 and 28,739.40

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Solution

The fourth proportional to 51,400.87, 70,936.73 and 28,739.40 is: 39,662.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,400.87 : 70,936.73 = 28,739.40 : x
  2. Step 2: Convert to fraction form
    51,400.87/70,936.73 = 28,739.40/x
  3. Step 3: Cross multiply
    51,400.87x = 70,936.73 × 28,739.40
  4. Step 4: Simplify right side
    51,400.87x = 2,038,679,058.16
  5. Step 5: Solve for x
    x = 2,038,679,058.16/51,400.87
  6. Step 6: Final answer
    x = 39,662.35

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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.