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Finding the Fourth Proportional to 76,107.29, 105,070.28 and 45,900.29

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Solution

The fourth proportional to 76,107.29, 105,070.28 and 45,900.29 is: 63,367.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,107.29 : 105,070.28 = 45,900.29 : x
  2. Step 2: Convert to fraction form
    76,107.29/105,070.28 = 45,900.29/x
  3. Step 3: Cross multiply
    76,107.29x = 105,070.28 × 45,900.29
  4. Step 4: Simplify right side
    76,107.29x = 4,822,755,567.53
  5. Step 5: Solve for x
    x = 4,822,755,567.53/76,107.29
  6. Step 6: Final answer
    x = 63,367.86

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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.