Home / 55,368.55-83,063.74-20,308.51

Finding the Fourth Proportional to 55,368.55, 83,063.74 and 20,308.51

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Solution

The fourth proportional to 55,368.55, 83,063.74 and 20,308.51 is: 30,466.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,368.55 : 83,063.74 = 20,308.51 : x
  2. Step 2: Convert to fraction form
    55,368.55/83,063.74 = 20,308.51/x
  3. Step 3: Cross multiply
    55,368.55x = 83,063.74 × 20,308.51
  4. Step 4: Simplify right side
    55,368.55x = 1,686,900,794.43
  5. Step 5: Solve for x
    x = 1,686,900,794.43/55,368.55
  6. Step 6: Final answer
    x = 30,466.77

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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.