Home / 74,976.84-103,466.06-40,985.40

Finding the Fourth Proportional to 74,976.84, 103,466.06 and 40,985.40

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Solution

The fourth proportional to 74,976.84, 103,466.06 and 40,985.40 is: 56,558.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,976.84 : 103,466.06 = 40,985.40 : x
  2. Step 2: Convert to fraction form
    74,976.84/103,466.06 = 40,985.40/x
  3. Step 3: Cross multiply
    74,976.84x = 103,466.06 × 40,985.40
  4. Step 4: Simplify right side
    74,976.84x = 4,240,597,855.52
  5. Step 5: Solve for x
    x = 4,240,597,855.52/74,976.84
  6. Step 6: Final answer
    x = 56,558.77

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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.