Home / 57,756.58-86,635.37-20,316.93

Finding the Fourth Proportional to 57,756.58, 86,635.37 and 20,316.93

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Solution

The fourth proportional to 57,756.58, 86,635.37 and 20,316.93 is: 30,475.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,756.58 : 86,635.37 = 20,316.93 : x
  2. Step 2: Convert to fraction form
    57,756.58/86,635.37 = 20,316.93/x
  3. Step 3: Cross multiply
    57,756.58x = 86,635.37 × 20,316.93
  4. Step 4: Simplify right side
    57,756.58x = 1,760,164,747.81
  5. Step 5: Solve for x
    x = 1,760,164,747.81/57,756.58
  6. Step 6: Final answer
    x = 30,475.57

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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.