Home / 52,090.75-78,089.74-18,803.42

Finding the Fourth Proportional to 52,090.75, 78,089.74 and 18,803.42

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Solution

The fourth proportional to 52,090.75, 78,089.74 and 18,803.42 is: 28,188.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,090.75 : 78,089.74 = 18,803.42 : x
  2. Step 2: Convert to fraction form
    52,090.75/78,089.74 = 18,803.42/x
  3. Step 3: Cross multiply
    52,090.75x = 78,089.74 × 18,803.42
  4. Step 4: Simplify right side
    52,090.75x = 1,468,353,854.33
  5. Step 5: Solve for x
    x = 1,468,353,854.33/52,090.75
  6. Step 6: Final answer
    x = 28,188.38

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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.