Home / 48,211.20-72,316.80-12,672.45

Finding the Fourth Proportional to 48,211.20, 72,316.80 and 12,672.45

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Solution

The fourth proportional to 48,211.20, 72,316.80 and 12,672.45 is: 19,008.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,211.20 : 72,316.80 = 12,672.45 : x
  2. Step 2: Convert to fraction form
    48,211.20/72,316.80 = 12,672.45/x
  3. Step 3: Cross multiply
    48,211.20x = 72,316.80 × 12,672.45
  4. Step 4: Simplify right side
    48,211.20x = 916,431,032.16
  5. Step 5: Solve for x
    x = 916,431,032.16/48,211.20
  6. Step 6: Final answer
    x = 19,008.68

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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.