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Finding the Fourth Proportional to 53,877.48, 80,779.77 and 18,798

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Solution

The fourth proportional to 53,877.48, 80,779.77 and 18,798 is: 28,184.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,877.48 : 80,779.77 = 18,798 : x
  2. Step 2: Convert to fraction form
    53,877.48/80,779.77 = 18,798/x
  3. Step 3: Cross multiply
    53,877.48x = 80,779.77 × 18,798
  4. Step 4: Simplify right side
    53,877.48x = 1,518,498,116.46
  5. Step 5: Solve for x
    x = 1,518,498,116.46/53,877.48
  6. Step 6: Final answer
    x = 28,184.28

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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.