Home / 48,278.40-72,421.20-17,109.60

Finding the Fourth Proportional to 48,278.40, 72,421.20 and 17,109.60

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Solution

The fourth proportional to 48,278.40, 72,421.20 and 17,109.60 is: 25,665.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,278.40 : 72,421.20 = 17,109.60 : x
  2. Step 2: Convert to fraction form
    48,278.40/72,421.20 = 17,109.60/x
  3. Step 3: Cross multiply
    48,278.40x = 72,421.20 × 17,109.60
  4. Step 4: Simplify right side
    48,278.40x = 1,239,097,763.52
  5. Step 5: Solve for x
    x = 1,239,097,763.52/48,278.40
  6. Step 6: Final answer
    x = 25,665.68

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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.