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Finding the Fourth Proportional to 76,915.74, 115,373.09 and 41,393.77

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Solution

The fourth proportional to 76,915.74, 115,373.09 and 41,393.77 is: 62,090.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,915.74 : 115,373.09 = 41,393.77 : x
  2. Step 2: Convert to fraction form
    76,915.74/115,373.09 = 41,393.77/x
  3. Step 3: Cross multiply
    76,915.74x = 115,373.09 × 41,393.77
  4. Step 4: Simplify right side
    76,915.74x = 4,775,727,088.90
  5. Step 5: Solve for x
    x = 4,775,727,088.90/76,915.74
  6. Step 6: Final answer
    x = 62,090.37

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1.5x scale

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.