Home / 74,830.16-112,148.26-30,405.36

Finding the Fourth Proportional to 74,830.16, 112,148.26 and 30,405.36

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Solution

The fourth proportional to 74,830.16, 112,148.26 and 30,405.36 is: 45,568.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,830.16 : 112,148.26 = 30,405.36 : x
  2. Step 2: Convert to fraction form
    74,830.16/112,148.26 = 30,405.36/x
  3. Step 3: Cross multiply
    74,830.16x = 112,148.26 × 30,405.36
  4. Step 4: Simplify right side
    74,830.16x = 3,409,908,218.67
  5. Step 5: Solve for x
    x = 3,409,908,218.67/74,830.16
  6. Step 6: Final answer
    x = 45,568.63

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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.