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Finding the Fourth Proportional to 56,853.60, 84,783 and 53,748

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Solution

The fourth proportional to 56,853.60, 84,783 and 53,748 is: 80,151.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,853.60 : 84,783 = 53,748 : x
  2. Step 2: Convert to fraction form
    56,853.60/84,783 = 53,748/x
  3. Step 3: Cross multiply
    56,853.60x = 84,783 × 53,748
  4. Step 4: Simplify right side
    56,853.60x = 4,556,916,684
  5. Step 5: Solve for x
    x = 4,556,916,684/56,853.60
  6. Step 6: Final answer
    x = 80,151.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.