Home / 57,474.15-79,312.29-31,979.67

Finding the Fourth Proportional to 57,474.15, 79,312.29 and 31,979.67

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Solution

The fourth proportional to 57,474.15, 79,312.29 and 31,979.67 is: 44,130.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,474.15 : 79,312.29 = 31,979.67 : x
  2. Step 2: Convert to fraction form
    57,474.15/79,312.29 = 31,979.67/x
  3. Step 3: Cross multiply
    57,474.15x = 79,312.29 × 31,979.67
  4. Step 4: Simplify right side
    57,474.15x = 2,536,380,861.14
  5. Step 5: Solve for x
    x = 2,536,380,861.14/57,474.15
  6. Step 6: Final answer
    x = 44,130.81

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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.