Home / 51,902.04-77,853.05-12,459.15

Finding the Fourth Proportional to 51,902.04, 77,853.05 and 12,459.15

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Solution

The fourth proportional to 51,902.04, 77,853.05 and 12,459.15 is: 18,688.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,902.04 : 77,853.05 = 12,459.15 : x
  2. Step 2: Convert to fraction form
    51,902.04/77,853.05 = 12,459.15/x
  3. Step 3: Cross multiply
    51,902.04x = 77,853.05 × 12,459.15
  4. Step 4: Simplify right side
    51,902.04x = 969,982,882.42
  5. Step 5: Solve for x
    x = 969,982,882.42/51,902.04
  6. Step 6: Final answer
    x = 18,688.73

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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.