Home / 52,421.78-72,343.35-28,549.75

Finding the Fourth Proportional to 52,421.78, 72,343.35 and 28,549.75

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Solution

The fourth proportional to 52,421.78, 72,343.35 and 28,549.75 is: 39,399.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,421.78 : 72,343.35 = 28,549.75 : x
  2. Step 2: Convert to fraction form
    52,421.78/72,343.35 = 28,549.75/x
  3. Step 3: Cross multiply
    52,421.78x = 72,343.35 × 28,549.75
  4. Step 4: Simplify right side
    52,421.78x = 2,065,384,556.66
  5. Step 5: Solve for x
    x = 2,065,384,556.66/52,421.78
  6. Step 6: Final answer
    x = 39,399.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.