Home / 89,315.78-133,985.95-33,151.12

Finding the Fourth Proportional to 89,315.78, 133,985.95 and 33,151.12

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Solution

The fourth proportional to 89,315.78, 133,985.95 and 33,151.12 is: 49,731.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,315.78 : 133,985.95 = 33,151.12 : x
  2. Step 2: Convert to fraction form
    89,315.78/133,985.95 = 33,151.12/x
  3. Step 3: Cross multiply
    89,315.78x = 133,985.95 × 33,151.12
  4. Step 4: Simplify right side
    89,315.78x = 4,441,783,888.92
  5. Step 5: Solve for x
    x = 4,441,783,888.92/89,315.78
  6. Step 6: Final answer
    x = 49,731.24

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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.