Home / 55,907.42-83,866.56-20,838.86

Finding the Fourth Proportional to 55,907.42, 83,866.56 and 20,838.86

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Solution

The fourth proportional to 55,907.42, 83,866.56 and 20,838.86 is: 31,260.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,907.42 : 83,866.56 = 20,838.86 : x
  2. Step 2: Convert to fraction form
    55,907.42/83,866.56 = 20,838.86/x
  3. Step 3: Cross multiply
    55,907.42x = 83,866.56 × 20,838.86
  4. Step 4: Simplify right side
    55,907.42x = 1,747,683,502.52
  5. Step 5: Solve for x
    x = 1,747,683,502.52/55,907.42
  6. Step 6: Final answer
    x = 31,260.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.