Home / 74,971.32-103,462.62-40,981.68

Finding the Fourth Proportional to 74,971.32, 103,462.62 and 40,981.68

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Solution

The fourth proportional to 74,971.32, 103,462.62 and 40,981.68 is: 56,555.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,971.32 : 103,462.62 = 40,981.68 : x
  2. Step 2: Convert to fraction form
    74,971.32/103,462.62 = 40,981.68/x
  3. Step 3: Cross multiply
    74,971.32x = 103,462.62 × 40,981.68
  4. Step 4: Simplify right side
    74,971.32x = 4,240,071,984.80
  5. Step 5: Solve for x
    x = 4,240,071,984.80/74,971.32
  6. Step 6: Final answer
    x = 56,555.92

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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.