Home / 77,921.64-116,911.59-40,458.33

Finding the Fourth Proportional to 77,921.64, 116,911.59 and 40,458.33

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Solution

The fourth proportional to 77,921.64, 116,911.59 and 40,458.33 is: 60,702.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,921.64 : 116,911.59 = 40,458.33 : x
  2. Step 2: Convert to fraction form
    77,921.64/116,911.59 = 40,458.33/x
  3. Step 3: Cross multiply
    77,921.64x = 116,911.59 × 40,458.33
  4. Step 4: Simplify right side
    77,921.64x = 4,730,047,689.04
  5. Step 5: Solve for x
    x = 4,730,047,689.04/77,921.64
  6. Step 6: Final answer
    x = 60,702.62

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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.