Home / 88,937.76-122,713.44-53,139.36

Finding the Fourth Proportional to 88,937.76, 122,713.44 and 53,139.36

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Solution

The fourth proportional to 88,937.76, 122,713.44 and 53,139.36 is: 73,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,937.76 : 122,713.44 = 53,139.36 : x
  2. Step 2: Convert to fraction form
    88,937.76/122,713.44 = 53,139.36/x
  3. Step 3: Cross multiply
    88,937.76x = 122,713.44 × 53,139.36
  4. Step 4: Simplify right side
    88,937.76x = 6,520,913,665.00
  5. Step 5: Solve for x
    x = 6,520,913,665.00/88,937.76
  6. Step 6: Final answer
    x = 73,319.97

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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.