Home / 58,905.43-81,338.54-54,631.60

Finding the Fourth Proportional to 58,905.43, 81,338.54 and 54,631.60

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Solution

The fourth proportional to 58,905.43, 81,338.54 and 54,631.60 is: 75,437.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,905.43 : 81,338.54 = 54,631.60 : x
  2. Step 2: Convert to fraction form
    58,905.43/81,338.54 = 54,631.60/x
  3. Step 3: Cross multiply
    58,905.43x = 81,338.54 × 54,631.60
  4. Step 4: Simplify right side
    58,905.43x = 4,443,654,581.86
  5. Step 5: Solve for x
    x = 4,443,654,581.86/58,905.43
  6. Step 6: Final answer
    x = 75,437.10

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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.