Home / 57,210.42-85,756.05-19,231.50

Finding the Fourth Proportional to 57,210.42, 85,756.05 and 19,231.50

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Solution

The fourth proportional to 57,210.42, 85,756.05 and 19,231.50 is: 28,827.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,210.42 : 85,756.05 = 19,231.50 : x
  2. Step 2: Convert to fraction form
    57,210.42/85,756.05 = 19,231.50/x
  3. Step 3: Cross multiply
    57,210.42x = 85,756.05 × 19,231.50
  4. Step 4: Simplify right side
    57,210.42x = 1,649,217,475.58
  5. Step 5: Solve for x
    x = 1,649,217,475.58/57,210.42
  6. Step 6: Final answer
    x = 28,827.22

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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.