Home / 47,972.72-71,476.75-45,290

Finding the Fourth Proportional to 47,972.72, 71,476.75 and 45,290

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Solution

The fourth proportional to 47,972.72, 71,476.75 and 45,290 is: 67,479.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,972.72 : 71,476.75 = 45,290 : x
  2. Step 2: Convert to fraction form
    47,972.72/71,476.75 = 45,290/x
  3. Step 3: Cross multiply
    47,972.72x = 71,476.75 × 45,290
  4. Step 4: Simplify right side
    47,972.72x = 3,237,182,007.50
  5. Step 5: Solve for x
    x = 3,237,182,007.50/47,972.72
  6. Step 6: Final answer
    x = 67,479.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.