Home / 88,391.58-121,895.57-59,385.48

Finding the Fourth Proportional to 88,391.58, 121,895.57 and 59,385.48

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Solution

The fourth proportional to 88,391.58, 121,895.57 and 59,385.48 is: 81,894.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,391.58 : 121,895.57 = 59,385.48 : x
  2. Step 2: Convert to fraction form
    88,391.58/121,895.57 = 59,385.48/x
  3. Step 3: Cross multiply
    88,391.58x = 121,895.57 × 59,385.48
  4. Step 4: Simplify right side
    88,391.58x = 7,238,826,625.68
  5. Step 5: Solve for x
    x = 7,238,826,625.68/88,391.58
  6. Step 6: Final answer
    x = 81,894.98

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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.