Home / 74,981.34-103,474.44-40,990.23

Finding the Fourth Proportional to 74,981.34, 103,474.44 and 40,990.23

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Solution

The fourth proportional to 74,981.34, 103,474.44 and 40,990.23 is: 56,566.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,981.34 : 103,474.44 = 40,990.23 : x
  2. Step 2: Convert to fraction form
    74,981.34/103,474.44 = 40,990.23/x
  3. Step 3: Cross multiply
    74,981.34x = 103,474.44 × 40,990.23
  4. Step 4: Simplify right side
    74,981.34x = 4,241,441,094.72
  5. Step 5: Solve for x
    x = 4,241,441,094.72/74,981.34
  6. Step 6: Final answer
    x = 56,566.62

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1.5x scale

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.