Home / 78,018.75-117,045.69-24,713.94

Finding the Fourth Proportional to 78,018.75, 117,045.69 and 24,713.94

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Solution

The fourth proportional to 78,018.75, 117,045.69 and 24,713.94 is: 37,076.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,018.75 : 117,045.69 = 24,713.94 : x
  2. Step 2: Convert to fraction form
    78,018.75/117,045.69 = 24,713.94/x
  3. Step 3: Cross multiply
    78,018.75x = 117,045.69 × 24,713.94
  4. Step 4: Simplify right side
    78,018.75x = 2,892,660,159.92
  5. Step 5: Solve for x
    x = 2,892,660,159.92/78,018.75
  6. Step 6: Final answer
    x = 37,076.47

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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.