Home / 87,161.50-130,812.31-45,053.93

Finding the Fourth Proportional to 87,161.50, 130,812.31 and 45,053.93

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Solution

The fourth proportional to 87,161.50, 130,812.31 and 45,053.93 is: 67,617.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,161.50 : 130,812.31 = 45,053.93 : x
  2. Step 2: Convert to fraction form
    87,161.50/130,812.31 = 45,053.93/x
  3. Step 3: Cross multiply
    87,161.50x = 130,812.31 × 45,053.93
  4. Step 4: Simplify right side
    87,161.50x = 5,893,609,041.23
  5. Step 5: Solve for x
    x = 5,893,609,041.23/87,161.50
  6. Step 6: Final answer
    x = 67,617.11

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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.