Home / 88,981.28-133,509.12-39,035.60

Finding the Fourth Proportional to 88,981.28, 133,509.12 and 39,035.60

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Solution

The fourth proportional to 88,981.28, 133,509.12 and 39,035.60 is: 58,569.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,981.28 : 133,509.12 = 39,035.60 : x
  2. Step 2: Convert to fraction form
    88,981.28/133,509.12 = 39,035.60/x
  3. Step 3: Cross multiply
    88,981.28x = 133,509.12 × 39,035.60
  4. Step 4: Simplify right side
    88,981.28x = 5,211,608,604.67
  5. Step 5: Solve for x
    x = 5,211,608,604.67/88,981.28
  6. Step 6: Final answer
    x = 58,569.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.