Home / 89,911.14-134,823.63-42,486.76

Finding the Fourth Proportional to 89,911.14, 134,823.63 and 42,486.76

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Solution

The fourth proportional to 89,911.14, 134,823.63 and 42,486.76 is: 63,709.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,911.14 : 134,823.63 = 42,486.76 : x
  2. Step 2: Convert to fraction form
    89,911.14/134,823.63 = 42,486.76/x
  3. Step 3: Cross multiply
    89,911.14x = 134,823.63 × 42,486.76
  4. Step 4: Simplify right side
    89,911.14x = 5,728,219,210.14
  5. Step 5: Solve for x
    x = 5,728,219,210.14/89,911.14
  6. Step 6: Final answer
    x = 63,709.78

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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.