Home / 74,903.55-103,367.58-42,636.57

Finding the Fourth Proportional to 74,903.55, 103,367.58 and 42,636.57

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Solution

The fourth proportional to 74,903.55, 103,367.58 and 42,636.57 is: 58,838.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,903.55 : 103,367.58 = 42,636.57 : x
  2. Step 2: Convert to fraction form
    74,903.55/103,367.58 = 42,636.57/x
  3. Step 3: Cross multiply
    74,903.55x = 103,367.58 × 42,636.57
  4. Step 4: Simplify right side
    74,903.55x = 4,407,239,060.40
  5. Step 5: Solve for x
    x = 4,407,239,060.40/74,903.55
  6. Step 6: Final answer
    x = 58,838.85

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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.