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Finding the Fourth Proportional to 51,854.50, 71,408.50 and 45,045.39

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Solution

The fourth proportional to 51,854.50, 71,408.50 and 45,045.39 is: 62,031.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,854.50 : 71,408.50 = 45,045.39 : x
  2. Step 2: Convert to fraction form
    51,854.50/71,408.50 = 45,045.39/x
  3. Step 3: Cross multiply
    51,854.50x = 71,408.50 × 45,045.39
  4. Step 4: Simplify right side
    51,854.50x = 3,216,623,731.82
  5. Step 5: Solve for x
    x = 3,216,623,731.82/51,854.50
  6. Step 6: Final answer
    x = 62,031.72

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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.