Home / 45,262.92-67,887-11,985.09

Finding the Fourth Proportional to 45,262.92, 67,887 and 11,985.09

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Solution

The fourth proportional to 45,262.92, 67,887 and 11,985.09 is: 17,975.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,262.92 : 67,887 = 11,985.09 : x
  2. Step 2: Convert to fraction form
    45,262.92/67,887 = 11,985.09/x
  3. Step 3: Cross multiply
    45,262.92x = 67,887 × 11,985.09
  4. Step 4: Simplify right side
    45,262.92x = 813,631,804.83
  5. Step 5: Solve for x
    x = 813,631,804.83/45,262.92
  6. Step 6: Final answer
    x = 17,975.68

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1.5x scale

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.