Home / 57,857.28-86,779.44-39,256.80

Finding the Fourth Proportional to 57,857.28, 86,779.44 and 39,256.80

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Solution

The fourth proportional to 57,857.28, 86,779.44 and 39,256.80 is: 58,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,857.28 : 86,779.44 = 39,256.80 : x
  2. Step 2: Convert to fraction form
    57,857.28/86,779.44 = 39,256.80/x
  3. Step 3: Cross multiply
    57,857.28x = 86,779.44 × 39,256.80
  4. Step 4: Simplify right side
    57,857.28x = 3,406,683,120.19
  5. Step 5: Solve for x
    x = 3,406,683,120.19/57,857.28
  6. Step 6: Final answer
    x = 58,880.80

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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.