Home / 74,981.64-103,485.93-43,144.39

Finding the Fourth Proportional to 74,981.64, 103,485.93 and 43,144.39

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Solution

The fourth proportional to 74,981.64, 103,485.93 and 43,144.39 is: 59,545.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,981.64 : 103,485.93 = 43,144.39 : x
  2. Step 2: Convert to fraction form
    74,981.64/103,485.93 = 43,144.39/x
  3. Step 3: Cross multiply
    74,981.64x = 103,485.93 × 43,144.39
  4. Step 4: Simplify right side
    74,981.64x = 4,464,837,064.72
  5. Step 5: Solve for x
    x = 4,464,837,064.72/74,981.64
  6. Step 6: Final answer
    x = 59,545.74

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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.