Home / 51,237.81-70,708.56-28,578.27

Finding the Fourth Proportional to 51,237.81, 70,708.56 and 28,578.27

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Solution

The fourth proportional to 51,237.81, 70,708.56 and 28,578.27 is: 39,438.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,237.81 : 70,708.56 = 28,578.27 : x
  2. Step 2: Convert to fraction form
    51,237.81/70,708.56 = 28,578.27/x
  3. Step 3: Cross multiply
    51,237.81x = 70,708.56 × 28,578.27
  4. Step 4: Simplify right side
    51,237.81x = 2,020,728,318.99
  5. Step 5: Solve for x
    x = 2,020,728,318.99/51,237.81
  6. Step 6: Final answer
    x = 39,438.23

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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.