Home / 47,031.78-64,905.12-25,811.80

Finding the Fourth Proportional to 47,031.78, 64,905.12 and 25,811.80

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Solution

The fourth proportional to 47,031.78, 64,905.12 and 25,811.80 is: 35,620.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,031.78 : 64,905.12 = 25,811.80 : x
  2. Step 2: Convert to fraction form
    47,031.78/64,905.12 = 25,811.80/x
  3. Step 3: Cross multiply
    47,031.78x = 64,905.12 × 25,811.80
  4. Step 4: Simplify right side
    47,031.78x = 1,675,317,976.42
  5. Step 5: Solve for x
    x = 1,675,317,976.42/47,031.78
  6. Step 6: Final answer
    x = 35,620.98

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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.