Home / 77,122.98-106,429.28-43,131.47

Finding the Fourth Proportional to 77,122.98, 106,429.28 and 43,131.47

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Solution

The fourth proportional to 77,122.98, 106,429.28 and 43,131.47 is: 59,521.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,122.98 : 106,429.28 = 43,131.47 : x
  2. Step 2: Convert to fraction form
    77,122.98/106,429.28 = 43,131.47/x
  3. Step 3: Cross multiply
    77,122.98x = 106,429.28 × 43,131.47
  4. Step 4: Simplify right side
    77,122.98x = 4,590,450,549.64
  5. Step 5: Solve for x
    x = 4,590,450,549.64/77,122.98
  6. Step 6: Final answer
    x = 59,521.18

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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.