Home / 74,748.66-112,152.86-30,378.90

Finding the Fourth Proportional to 74,748.66, 112,152.86 and 30,378.90

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Solution

The fourth proportional to 74,748.66, 112,152.86 and 30,378.90 is: 45,580.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,748.66 : 112,152.86 = 30,378.90 : x
  2. Step 2: Convert to fraction form
    74,748.66/112,152.86 = 30,378.90/x
  3. Step 3: Cross multiply
    74,748.66x = 112,152.86 × 30,378.90
  4. Step 4: Simplify right side
    74,748.66x = 3,407,080,518.65
  5. Step 5: Solve for x
    x = 3,407,080,518.65/74,748.66
  6. Step 6: Final answer
    x = 45,580.49

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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.