Home / 87,628.02-131,461.29-28,469.94

Finding the Fourth Proportional to 87,628.02, 131,461.29 and 28,469.94

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Solution

The fourth proportional to 87,628.02, 131,461.29 and 28,469.94 is: 42,711.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,628.02 : 131,461.29 = 28,469.94 : x
  2. Step 2: Convert to fraction form
    87,628.02/131,461.29 = 28,469.94/x
  3. Step 3: Cross multiply
    87,628.02x = 131,461.29 × 28,469.94
  4. Step 4: Simplify right side
    87,628.02x = 3,742,695,038.62
  5. Step 5: Solve for x
    x = 3,742,695,038.62/87,628.02
  6. Step 6: Final answer
    x = 42,711.17

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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.