Home / 80,588.40-111,111.99-53,671.91

Finding the Fourth Proportional to 80,588.40, 111,111.99 and 53,671.91

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Solution

The fourth proportional to 80,588.40, 111,111.99 and 53,671.91 is: 74,000.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,588.40 : 111,111.99 = 53,671.91 : x
  2. Step 2: Convert to fraction form
    80,588.40/111,111.99 = 53,671.91/x
  3. Step 3: Cross multiply
    80,588.40x = 111,111.99 × 53,671.91
  4. Step 4: Simplify right side
    80,588.40x = 5,963,592,171.64
  5. Step 5: Solve for x
    x = 5,963,592,171.64/80,588.40
  6. Step 6: Final answer
    x = 74,000.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.