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Finding the Fourth Proportional to 79,745.07, 110,064.12 and 45,776.51

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Solution

The fourth proportional to 79,745.07, 110,064.12 and 45,776.51 is: 63,180.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,745.07 : 110,064.12 = 45,776.51 : x
  2. Step 2: Convert to fraction form
    79,745.07/110,064.12 = 45,776.51/x
  3. Step 3: Cross multiply
    79,745.07x = 110,064.12 × 45,776.51
  4. Step 4: Simplify right side
    79,745.07x = 5,038,350,980.58
  5. Step 5: Solve for x
    x = 5,038,350,980.58/79,745.07
  6. Step 6: Final answer
    x = 63,180.72

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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.