Home / 88,520.34-122,076-65,914.86

Finding the Fourth Proportional to 88,520.34, 122,076 and 65,914.86

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Solution

The fourth proportional to 88,520.34, 122,076 and 65,914.86 is: 90,901.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,520.34 : 122,076 = 65,914.86 : x
  2. Step 2: Convert to fraction form
    88,520.34/122,076 = 65,914.86/x
  3. Step 3: Cross multiply
    88,520.34x = 122,076 × 65,914.86
  4. Step 4: Simplify right side
    88,520.34x = 8,046,622,449.36
  5. Step 5: Solve for x
    x = 8,046,622,449.36/88,520.34
  6. Step 6: Final answer
    x = 90,901.40

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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.