Home / 51,457.08-71,012.64-28,795.92

Finding the Fourth Proportional to 51,457.08, 71,012.64 and 28,795.92

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Solution

The fourth proportional to 51,457.08, 71,012.64 and 28,795.92 is: 39,739.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,457.08 : 71,012.64 = 28,795.92 : x
  2. Step 2: Convert to fraction form
    51,457.08/71,012.64 = 28,795.92/x
  3. Step 3: Cross multiply
    51,457.08x = 71,012.64 × 28,795.92
  4. Step 4: Simplify right side
    51,457.08x = 2,044,874,300.43
  5. Step 5: Solve for x
    x = 2,044,874,300.43/51,457.08
  6. Step 6: Final answer
    x = 39,739.42

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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.