Home / 89,384.34-123,337.02-51,137.81

Finding the Fourth Proportional to 89,384.34, 123,337.02 and 51,137.81

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Solution

The fourth proportional to 89,384.34, 123,337.02 and 51,137.81 is: 70,562.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,384.34 : 123,337.02 = 51,137.81 : x
  2. Step 2: Convert to fraction form
    89,384.34/123,337.02 = 51,137.81/x
  3. Step 3: Cross multiply
    89,384.34x = 123,337.02 × 51,137.81
  4. Step 4: Simplify right side
    89,384.34x = 6,307,185,403.07
  5. Step 5: Solve for x
    x = 6,307,185,403.07/89,384.34
  6. Step 6: Final answer
    x = 70,562.53

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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.