Home / 57,125.85-78,832.71-31,631.67

Finding the Fourth Proportional to 57,125.85, 78,832.71 and 31,631.67

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Solution

The fourth proportional to 57,125.85, 78,832.71 and 31,631.67 is: 43,651.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,125.85 : 78,832.71 = 31,631.67 : x
  2. Step 2: Convert to fraction form
    57,125.85/78,832.71 = 31,631.67/x
  3. Step 3: Cross multiply
    57,125.85x = 78,832.71 × 31,631.67
  4. Step 4: Simplify right side
    57,125.85x = 2,493,609,715.60
  5. Step 5: Solve for x
    x = 2,493,609,715.60/57,125.85
  6. Step 6: Final answer
    x = 43,651.16

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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.