Home / 48,218.40-72,327.60-12,679.65

Finding the Fourth Proportional to 48,218.40, 72,327.60 and 12,679.65

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Solution

The fourth proportional to 48,218.40, 72,327.60 and 12,679.65 is: 19,019.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,218.40 : 72,327.60 = 12,679.65 : x
  2. Step 2: Convert to fraction form
    48,218.40/72,327.60 = 12,679.65/x
  3. Step 3: Cross multiply
    48,218.40x = 72,327.60 × 12,679.65
  4. Step 4: Simplify right side
    48,218.40x = 917,088,653.34
  5. Step 5: Solve for x
    x = 917,088,653.34/48,218.40
  6. Step 6: Final answer
    x = 19,019.48

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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.