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Finding the Fourth Proportional to 181,579.39, 272,412.79 and 56,920.39

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Solution

The fourth proportional to 181,579.39, 272,412.79 and 56,920.39 is: 85,394.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,579.39 : 272,412.79 = 56,920.39 : x
  2. Step 2: Convert to fraction form
    181,579.39/272,412.79 = 56,920.39/x
  3. Step 3: Cross multiply
    181,579.39x = 272,412.79 × 56,920.39
  4. Step 4: Simplify right side
    181,579.39x = 15,505,841,424.46
  5. Step 5: Solve for x
    x = 15,505,841,424.46/181,579.39
  6. Step 6: Final answer
    x = 85,394.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.