Home / 55,543.55-83,315.54-13,423.56

Finding the Fourth Proportional to 55,543.55, 83,315.54 and 13,423.56

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Solution

The fourth proportional to 55,543.55, 83,315.54 and 13,423.56 is: 20,135.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,543.55 : 83,315.54 = 13,423.56 : x
  2. Step 2: Convert to fraction form
    55,543.55/83,315.54 = 13,423.56/x
  3. Step 3: Cross multiply
    55,543.55x = 83,315.54 × 13,423.56
  4. Step 4: Simplify right side
    55,543.55x = 1,118,391,147.23
  5. Step 5: Solve for x
    x = 1,118,391,147.23/55,543.55
  6. Step 6: Final answer
    x = 20,135.39

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1.5x scale

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.