Home / 56,445.21-84,718.58-30,172.41

Finding the Fourth Proportional to 56,445.21, 84,718.58 and 30,172.41

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Solution

The fourth proportional to 56,445.21, 84,718.58 and 30,172.41 is: 45,285.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,445.21 : 84,718.58 = 30,172.41 : x
  2. Step 2: Convert to fraction form
    56,445.21/84,718.58 = 30,172.41/x
  3. Step 3: Cross multiply
    56,445.21x = 84,718.58 × 30,172.41
  4. Step 4: Simplify right side
    56,445.21x = 2,556,163,579.52
  5. Step 5: Solve for x
    x = 2,556,163,579.52/56,445.21
  6. Step 6: Final answer
    x = 45,285.75

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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.