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Finding the Fourth Proportional to 57,408.57, 79,262.48 and 51,339.98

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Solution

The fourth proportional to 57,408.57, 79,262.48 and 51,339.98 is: 70,883.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,408.57 : 79,262.48 = 51,339.98 : x
  2. Step 2: Convert to fraction form
    57,408.57/79,262.48 = 51,339.98/x
  3. Step 3: Cross multiply
    57,408.57x = 79,262.48 × 51,339.98
  4. Step 4: Simplify right side
    57,408.57x = 4,069,334,461.29
  5. Step 5: Solve for x
    x = 4,069,334,461.29/57,408.57
  6. Step 6: Final answer
    x = 70,883.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.