Home / 85,408.34-128,114.02-26,244.52

Finding the Fourth Proportional to 85,408.34, 128,114.02 and 26,244.52

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Solution

The fourth proportional to 85,408.34, 128,114.02 and 26,244.52 is: 39,367.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,408.34 : 128,114.02 = 26,244.52 : x
  2. Step 2: Convert to fraction form
    85,408.34/128,114.02 = 26,244.52/x
  3. Step 3: Cross multiply
    85,408.34x = 128,114.02 × 26,244.52
  4. Step 4: Simplify right side
    85,408.34x = 3,362,290,672.69
  5. Step 5: Solve for x
    x = 3,362,290,672.69/85,408.34
  6. Step 6: Final answer
    x = 39,367.24

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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.