Home / 77,862.64-116,881.32-31,148.08

Finding the Fourth Proportional to 77,862.64, 116,881.32 and 31,148.08

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Solution

The fourth proportional to 77,862.64, 116,881.32 and 31,148.08 is: 46,757.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,862.64 : 116,881.32 = 31,148.08 : x
  2. Step 2: Convert to fraction form
    77,862.64/116,881.32 = 31,148.08/x
  3. Step 3: Cross multiply
    77,862.64x = 116,881.32 × 31,148.08
  4. Step 4: Simplify right side
    77,862.64x = 3,640,628,705.87
  5. Step 5: Solve for x
    x = 3,640,628,705.87/77,862.64
  6. Step 6: Final answer
    x = 46,757.07

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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.