Home / 40,869.99-61,271.90-12,775.58

Finding the Fourth Proportional to 40,869.99, 61,271.90 and 12,775.58

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Solution

The fourth proportional to 40,869.99, 61,271.90 and 12,775.58 is: 19,153.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,869.99 : 61,271.90 = 12,775.58 : x
  2. Step 2: Convert to fraction form
    40,869.99/61,271.90 = 12,775.58/x
  3. Step 3: Cross multiply
    40,869.99x = 61,271.90 × 12,775.58
  4. Step 4: Simplify right side
    40,869.99x = 782,784,060.20
  5. Step 5: Solve for x
    x = 782,784,060.20/40,869.99
  6. Step 6: Final answer
    x = 19,153.03

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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.