Home / 92,921.18-128,234.49-52,636.10

Finding the Fourth Proportional to 92,921.18, 128,234.49 and 52,636.10

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Solution

The fourth proportional to 92,921.18, 128,234.49 and 52,636.10 is: 72,639.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,921.18 : 128,234.49 = 52,636.10 : x
  2. Step 2: Convert to fraction form
    92,921.18/128,234.49 = 52,636.10/x
  3. Step 3: Cross multiply
    92,921.18x = 128,234.49 × 52,636.10
  4. Step 4: Simplify right side
    92,921.18x = 6,749,763,439.09
  5. Step 5: Solve for x
    x = 6,749,763,439.09/92,921.18
  6. Step 6: Final answer
    x = 72,639.67

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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.