Home / 66,929.76-92,337.57-42,731.61

Finding the Fourth Proportional to 66,929.76, 92,337.57 and 42,731.61

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Solution

The fourth proportional to 66,929.76, 92,337.57 and 42,731.61 is: 58,953.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,929.76 : 92,337.57 = 42,731.61 : x
  2. Step 2: Convert to fraction form
    66,929.76/92,337.57 = 42,731.61/x
  3. Step 3: Cross multiply
    66,929.76x = 92,337.57 × 42,731.61
  4. Step 4: Simplify right side
    66,929.76x = 3,945,733,029.59
  5. Step 5: Solve for x
    x = 3,945,733,029.59/66,929.76
  6. Step 6: Final answer
    x = 58,953.34

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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.