Home / 51,069.62-70,447.30-30,646.40

Finding the Fourth Proportional to 51,069.62, 70,447.30 and 30,646.40

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Solution

The fourth proportional to 51,069.62, 70,447.30 and 30,646.40 is: 42,274.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,069.62 : 70,447.30 = 30,646.40 : x
  2. Step 2: Convert to fraction form
    51,069.62/70,447.30 = 30,646.40/x
  3. Step 3: Cross multiply
    51,069.62x = 70,447.30 × 30,646.40
  4. Step 4: Simplify right side
    51,069.62x = 2,158,956,134.72
  5. Step 5: Solve for x
    x = 2,158,956,134.72/51,069.62
  6. Step 6: Final answer
    x = 42,274.76

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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.