Home / 45,176.13-67,671.86-21,126.02

Finding the Fourth Proportional to 45,176.13, 67,671.86 and 21,126.02

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Solution

The fourth proportional to 45,176.13, 67,671.86 and 21,126.02 is: 31,645.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,176.13 : 67,671.86 = 21,126.02 : x
  2. Step 2: Convert to fraction form
    45,176.13/67,671.86 = 21,126.02/x
  3. Step 3: Cross multiply
    45,176.13x = 67,671.86 × 21,126.02
  4. Step 4: Simplify right side
    45,176.13x = 1,429,636,623.81
  5. Step 5: Solve for x
    x = 1,429,636,623.81/45,176.13
  6. Step 6: Final answer
    x = 31,645.84

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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.