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Finding the Fourth Proportional to 88,702.76, 122,409.80 and 60,457.78

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Solution

The fourth proportional to 88,702.76, 122,409.80 and 60,457.78 is: 83,431.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,702.76 : 122,409.80 = 60,457.78 : x
  2. Step 2: Convert to fraction form
    88,702.76/122,409.80 = 60,457.78/x
  3. Step 3: Cross multiply
    88,702.76x = 122,409.80 × 60,457.78
  4. Step 4: Simplify right side
    88,702.76x = 7,400,624,758.24
  5. Step 5: Solve for x
    x = 7,400,624,758.24/88,702.76
  6. Step 6: Final answer
    x = 83,431.73

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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.