Home / 53,747.30-80,616.63-18,681.86

Finding the Fourth Proportional to 53,747.30, 80,616.63 and 18,681.86

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Solution

The fourth proportional to 53,747.30, 80,616.63 and 18,681.86 is: 28,021.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,747.30 : 80,616.63 = 18,681.86 : x
  2. Step 2: Convert to fraction form
    53,747.30/80,616.63 = 18,681.86/x
  3. Step 3: Cross multiply
    53,747.30x = 80,616.63 × 18,681.86
  4. Step 4: Simplify right side
    53,747.30x = 1,506,068,595.33
  5. Step 5: Solve for x
    x = 1,506,068,595.33/53,747.30
  6. Step 6: Final answer
    x = 28,021.29

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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.