Home / 76,379.10-114,541.32-26,445.80

Finding the Fourth Proportional to 76,379.10, 114,541.32 and 26,445.80

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Solution

The fourth proportional to 76,379.10, 114,541.32 and 26,445.80 is: 39,659.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,379.10 : 114,541.32 = 26,445.80 : x
  2. Step 2: Convert to fraction form
    76,379.10/114,541.32 = 26,445.80/x
  3. Step 3: Cross multiply
    76,379.10x = 114,541.32 × 26,445.80
  4. Step 4: Simplify right side
    76,379.10x = 3,029,136,840.46
  5. Step 5: Solve for x
    x = 3,029,136,840.46/76,379.10
  6. Step 6: Final answer
    x = 39,659.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.