Home / 87,419.51-131,044.15-55,730.69

Finding the Fourth Proportional to 87,419.51, 131,044.15 and 55,730.69

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Solution

The fourth proportional to 87,419.51, 131,044.15 and 55,730.69 is: 83,541.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,419.51 : 131,044.15 = 55,730.69 : x
  2. Step 2: Convert to fraction form
    87,419.51/131,044.15 = 55,730.69/x
  3. Step 3: Cross multiply
    87,419.51x = 131,044.15 × 55,730.69
  4. Step 4: Simplify right side
    87,419.51x = 7,303,180,899.96
  5. Step 5: Solve for x
    x = 7,303,180,899.96/87,419.51
  6. Step 6: Final answer
    x = 83,541.77

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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.