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Finding the Fourth Proportional to 61,385.88, 91,630.68 and 52,676.76

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Solution

The fourth proportional to 61,385.88, 91,630.68 and 52,676.76 is: 78,630.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,385.88 : 91,630.68 = 52,676.76 : x
  2. Step 2: Convert to fraction form
    61,385.88/91,630.68 = 52,676.76/x
  3. Step 3: Cross multiply
    61,385.88x = 91,630.68 × 52,676.76
  4. Step 4: Simplify right side
    61,385.88x = 4,826,807,339.00
  5. Step 5: Solve for x
    x = 4,826,807,339.00/61,385.88
  6. Step 6: Final answer
    x = 78,630.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.