Home / 88,172.88-121,679.47-47,887.43

Finding the Fourth Proportional to 88,172.88, 121,679.47 and 47,887.43

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Solution

The fourth proportional to 88,172.88, 121,679.47 and 47,887.43 is: 66,085.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,172.88 : 121,679.47 = 47,887.43 : x
  2. Step 2: Convert to fraction form
    88,172.88/121,679.47 = 47,887.43/x
  3. Step 3: Cross multiply
    88,172.88x = 121,679.47 × 47,887.43
  4. Step 4: Simplify right side
    88,172.88x = 5,826,917,102.06
  5. Step 5: Solve for x
    x = 5,826,917,102.06/88,172.88
  6. Step 6: Final answer
    x = 66,085.14

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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.