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Finding the Fourth Proportional to 74,722.62, 112,113.90 and 30,352.80

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Solution

The fourth proportional to 74,722.62, 112,113.90 and 30,352.80 is: 45,541.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,722.62 : 112,113.90 = 30,352.80 : x
  2. Step 2: Convert to fraction form
    74,722.62/112,113.90 = 30,352.80/x
  3. Step 3: Cross multiply
    74,722.62x = 112,113.90 × 30,352.80
  4. Step 4: Simplify right side
    74,722.62x = 3,402,970,783.92
  5. Step 5: Solve for x
    x = 3,402,970,783.92/74,722.62
  6. Step 6: Final answer
    x = 45,541.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.