Home / 89,048.08-122,732.58-77,646.52

Finding the Fourth Proportional to 89,048.08, 122,732.58 and 77,646.52

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Solution

The fourth proportional to 89,048.08, 122,732.58 and 77,646.52 is: 107,018.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,048.08 : 122,732.58 = 77,646.52 : x
  2. Step 2: Convert to fraction form
    89,048.08/122,732.58 = 77,646.52/x
  3. Step 3: Cross multiply
    89,048.08x = 122,732.58 × 77,646.52
  4. Step 4: Simplify right side
    89,048.08x = 9,529,757,727.62
  5. Step 5: Solve for x
    x = 9,529,757,727.62/89,048.08
  6. Step 6: Final answer
    x = 107,018.12

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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.