Home / 53,390.78-73,678.18-29,516.93

Finding the Fourth Proportional to 53,390.78, 73,678.18 and 29,516.93

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Solution

The fourth proportional to 53,390.78, 73,678.18 and 29,516.93 is: 40,732.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,390.78 : 73,678.18 = 29,516.93 : x
  2. Step 2: Convert to fraction form
    53,390.78/73,678.18 = 29,516.93/x
  3. Step 3: Cross multiply
    53,390.78x = 73,678.18 × 29,516.93
  4. Step 4: Simplify right side
    53,390.78x = 2,174,753,681.59
  5. Step 5: Solve for x
    x = 2,174,753,681.59/53,390.78
  6. Step 6: Final answer
    x = 40,732.76

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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.