Home / 57,012.96-78,679.52-31,861.92

Finding the Fourth Proportional to 57,012.96, 78,679.52 and 31,861.92

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Solution

The fourth proportional to 57,012.96, 78,679.52 and 31,861.92 is: 43,970.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,012.96 : 78,679.52 = 31,861.92 : x
  2. Step 2: Convert to fraction form
    57,012.96/78,679.52 = 31,861.92/x
  3. Step 3: Cross multiply
    57,012.96x = 78,679.52 × 31,861.92
  4. Step 4: Simplify right side
    57,012.96x = 2,506,880,571.88
  5. Step 5: Solve for x
    x = 2,506,880,571.88/57,012.96
  6. Step 6: Final answer
    x = 43,970.36

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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.