Home / 57,927.35-86,880.30-20,487.74

Finding the Fourth Proportional to 57,927.35, 86,880.30 and 20,487.74

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Solution

The fourth proportional to 57,927.35, 86,880.30 and 20,487.74 is: 30,727.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,927.35 : 86,880.30 = 20,487.74 : x
  2. Step 2: Convert to fraction form
    57,927.35/86,880.30 = 20,487.74/x
  3. Step 3: Cross multiply
    57,927.35x = 86,880.30 × 20,487.74
  4. Step 4: Simplify right side
    57,927.35x = 1,779,980,486.29
  5. Step 5: Solve for x
    x = 1,779,980,486.29/57,927.35
  6. Step 6: Final answer
    x = 30,727.81

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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.