Home / 78,433.09-108,240.28-46,161.88

Finding the Fourth Proportional to 78,433.09, 108,240.28 and 46,161.88

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Solution

The fourth proportional to 78,433.09, 108,240.28 and 46,161.88 is: 63,704.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,433.09 : 108,240.28 = 46,161.88 : x
  2. Step 2: Convert to fraction form
    78,433.09/108,240.28 = 46,161.88/x
  3. Step 3: Cross multiply
    78,433.09x = 108,240.28 × 46,161.88
  4. Step 4: Simplify right side
    78,433.09x = 4,996,574,585.72
  5. Step 5: Solve for x
    x = 4,996,574,585.72/78,433.09
  6. Step 6: Final answer
    x = 63,704.93

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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.