Home / 87,210.59-120,393.27-58,519.98

Finding the Fourth Proportional to 87,210.59, 120,393.27 and 58,519.98

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Solution

The fourth proportional to 87,210.59, 120,393.27 and 58,519.98 is: 80,786.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,210.59 : 120,393.27 = 58,519.98 : x
  2. Step 2: Convert to fraction form
    87,210.59/120,393.27 = 58,519.98/x
  3. Step 3: Cross multiply
    87,210.59x = 120,393.27 × 58,519.98
  4. Step 4: Simplify right side
    87,210.59x = 7,045,411,752.53
  5. Step 5: Solve for x
    x = 7,045,411,752.53/87,210.59
  6. Step 6: Final answer
    x = 80,786.20

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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.