Home / 92,977.17-128,311.20-52,689.59

Finding the Fourth Proportional to 92,977.17, 128,311.20 and 52,689.59

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Solution

The fourth proportional to 92,977.17, 128,311.20 and 52,689.59 is: 72,713.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,977.17 : 128,311.20 = 52,689.59 : x
  2. Step 2: Convert to fraction form
    92,977.17/128,311.20 = 52,689.59/x
  3. Step 3: Cross multiply
    92,977.17x = 128,311.20 × 52,689.59
  4. Step 4: Simplify right side
    92,977.17x = 6,760,664,520.41
  5. Step 5: Solve for x
    x = 6,760,664,520.41/92,977.17
  6. Step 6: Final answer
    x = 72,713.17

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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.