Home / 74,931.10-103,400.25-40,932.70

Finding the Fourth Proportional to 74,931.10, 103,400.25 and 40,932.70

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Solution

The fourth proportional to 74,931.10, 103,400.25 and 40,932.70 is: 56,484.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,931.10 : 103,400.25 = 40,932.70 : x
  2. Step 2: Convert to fraction form
    74,931.10/103,400.25 = 40,932.70/x
  3. Step 3: Cross multiply
    74,931.10x = 103,400.25 × 40,932.70
  4. Step 4: Simplify right side
    74,931.10x = 4,232,451,413.18
  5. Step 5: Solve for x
    x = 4,232,451,413.18/74,931.10
  6. Step 6: Final answer
    x = 56,484.58

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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.