Home / 53,877.30-80,815.95-18,812.40

Finding the Fourth Proportional to 53,877.30, 80,815.95 and 18,812.40

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Solution

The fourth proportional to 53,877.30, 80,815.95 and 18,812.40 is: 28,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,877.30 : 80,815.95 = 18,812.40 : x
  2. Step 2: Convert to fraction form
    53,877.30/80,815.95 = 18,812.40/x
  3. Step 3: Cross multiply
    53,877.30x = 80,815.95 × 18,812.40
  4. Step 4: Simplify right side
    53,877.30x = 1,520,341,977.78
  5. Step 5: Solve for x
    x = 1,520,341,977.78/53,877.30
  6. Step 6: Final answer
    x = 28,218.60

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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.