Home / 53,749.55-80,620-18,684.11

Finding the Fourth Proportional to 53,749.55, 80,620 and 18,684.11

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Solution

The fourth proportional to 53,749.55, 80,620 and 18,684.11 is: 28,024.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,749.55 : 80,620 = 18,684.11 : x
  2. Step 2: Convert to fraction form
    53,749.55/80,620 = 18,684.11/x
  3. Step 3: Cross multiply
    53,749.55x = 80,620 × 18,684.11
  4. Step 4: Simplify right side
    53,749.55x = 1,506,312,948.20
  5. Step 5: Solve for x
    x = 1,506,312,948.20/53,749.55
  6. Step 6: Final answer
    x = 28,024.66

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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.