Home / 58,706.32-87,981.60-31,983.76

Finding the Fourth Proportional to 58,706.32, 87,981.60 and 31,983.76

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Solution

The fourth proportional to 58,706.32, 87,981.60 and 31,983.76 is: 47,933.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,706.32 : 87,981.60 = 31,983.76 : x
  2. Step 2: Convert to fraction form
    58,706.32/87,981.60 = 31,983.76/x
  3. Step 3: Cross multiply
    58,706.32x = 87,981.60 × 31,983.76
  4. Step 4: Simplify right side
    58,706.32x = 2,813,981,938.91
  5. Step 5: Solve for x
    x = 2,813,981,938.91/58,706.32
  6. Step 6: Final answer
    x = 47,933.21

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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.