Home / 77,071.03-115,315.85-45,498.26

Finding the Fourth Proportional to 77,071.03, 115,315.85 and 45,498.26

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Solution

The fourth proportional to 77,071.03, 115,315.85 and 45,498.26 is: 68,075.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,071.03 : 115,315.85 = 45,498.26 : x
  2. Step 2: Convert to fraction form
    77,071.03/115,315.85 = 45,498.26/x
  3. Step 3: Cross multiply
    77,071.03x = 115,315.85 × 45,498.26
  4. Step 4: Simplify right side
    77,071.03x = 5,246,670,671.53
  5. Step 5: Solve for x
    x = 5,246,670,671.53/77,071.03
  6. Step 6: Final answer
    x = 68,075.78

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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.