Home / 74,975.58-103,543.78-64,855.44

Finding the Fourth Proportional to 74,975.58, 103,543.78 and 64,855.44

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Solution

The fourth proportional to 74,975.58, 103,543.78 and 64,855.44 is: 89,567.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,975.58 : 103,543.78 = 64,855.44 : x
  2. Step 2: Convert to fraction form
    74,975.58/103,543.78 = 64,855.44/x
  3. Step 3: Cross multiply
    74,975.58x = 103,543.78 × 64,855.44
  4. Step 4: Simplify right side
    74,975.58x = 6,715,377,411.16
  5. Step 5: Solve for x
    x = 6,715,377,411.16/74,975.58
  6. Step 6: Final answer
    x = 89,567.53

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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.