Home / 57,931.60-79,946.04-32,780.56

Finding the Fourth Proportional to 57,931.60, 79,946.04 and 32,780.56

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Solution

The fourth proportional to 57,931.60, 79,946.04 and 32,780.56 is: 45,237.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,931.60 : 79,946.04 = 32,780.56 : x
  2. Step 2: Convert to fraction form
    57,931.60/79,946.04 = 32,780.56/x
  3. Step 3: Cross multiply
    57,931.60x = 79,946.04 × 32,780.56
  4. Step 4: Simplify right side
    57,931.60x = 2,620,675,960.98
  5. Step 5: Solve for x
    x = 2,620,675,960.98/57,931.60
  6. Step 6: Final answer
    x = 45,237.42

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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.