Home / 56,635.26-78,157.62-31,142.67

Finding the Fourth Proportional to 56,635.26, 78,157.62 and 31,142.67

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Solution

The fourth proportional to 56,635.26, 78,157.62 and 31,142.67 is: 42,977.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,635.26 : 78,157.62 = 31,142.67 : x
  2. Step 2: Convert to fraction form
    56,635.26/78,157.62 = 31,142.67/x
  3. Step 3: Cross multiply
    56,635.26x = 78,157.62 × 31,142.67
  4. Step 4: Simplify right side
    56,635.26x = 2,434,036,967.65
  5. Step 5: Solve for x
    x = 2,434,036,967.65/56,635.26
  6. Step 6: Final answer
    x = 42,977.41

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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.