Home / 74,748.54-112,152.67-30,378.77

Finding the Fourth Proportional to 74,748.54, 112,152.67 and 30,378.77

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Solution

The fourth proportional to 74,748.54, 112,152.67 and 30,378.77 is: 45,580.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,748.54 : 112,152.67 = 30,378.77 : x
  2. Step 2: Convert to fraction form
    74,748.54/112,152.67 = 30,378.77/x
  3. Step 3: Cross multiply
    74,748.54x = 112,152.67 × 30,378.77
  4. Step 4: Simplify right side
    74,748.54x = 3,407,059,530.11
  5. Step 5: Solve for x
    x = 3,407,059,530.11/74,748.54
  6. Step 6: Final answer
    x = 45,580.28

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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.