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Finding the Fourth Proportional to 56,248.69, 84,377.51 and 18,809.00

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Solution

The fourth proportional to 56,248.69, 84,377.51 and 18,809.00 is: 28,214.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,248.69 : 84,377.51 = 18,809.00 : x
  2. Step 2: Convert to fraction form
    56,248.69/84,377.51 = 18,809.00/x
  3. Step 3: Cross multiply
    56,248.69x = 84,377.51 × 18,809.00
  4. Step 4: Simplify right side
    56,248.69x = 1,587,056,210.72
  5. Step 5: Solve for x
    x = 1,587,056,210.72/56,248.69
  6. Step 6: Final answer
    x = 28,214.99

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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.