Home / 87,278.45-130,918.10-34,688.07

Finding the Fourth Proportional to 87,278.45, 130,918.10 and 34,688.07

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Solution

The fourth proportional to 87,278.45, 130,918.10 and 34,688.07 is: 52,032.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,278.45 : 130,918.10 = 34,688.07 : x
  2. Step 2: Convert to fraction form
    87,278.45/130,918.10 = 34,688.07/x
  3. Step 3: Cross multiply
    87,278.45x = 130,918.10 × 34,688.07
  4. Step 4: Simplify right side
    87,278.45x = 4,541,296,043.63
  5. Step 5: Solve for x
    x = 4,541,296,043.63/87,278.45
  6. Step 6: Final answer
    x = 52,032.27

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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.