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Finding the Fourth Proportional to 104,379, 144,038.82 and 56,630.52

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Solution

The fourth proportional to 104,379, 144,038.82 and 56,630.52 is: 78,147.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,379 : 144,038.82 = 56,630.52 : x
  2. Step 2: Convert to fraction form
    104,379/144,038.82 = 56,630.52/x
  3. Step 3: Cross multiply
    104,379x = 144,038.82 × 56,630.52
  4. Step 4: Simplify right side
    104,379x = 8,156,993,276.79
  5. Step 5: Solve for x
    x = 8,156,993,276.79/104,379
  6. Step 6: Final answer
    x = 78,147.84

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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.