Home / 52,158.72-78,237.26-12,715.76

Finding the Fourth Proportional to 52,158.72, 78,237.26 and 12,715.76

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Solution

The fourth proportional to 52,158.72, 78,237.26 and 12,715.76 is: 19,073.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,158.72 : 78,237.26 = 12,715.76 : x
  2. Step 2: Convert to fraction form
    52,158.72/78,237.26 = 12,715.76/x
  3. Step 3: Cross multiply
    52,158.72x = 78,237.26 × 12,715.76
  4. Step 4: Simplify right side
    52,158.72x = 994,846,221.22
  5. Step 5: Solve for x
    x = 994,846,221.22/52,158.72
  6. Step 6: Final answer
    x = 19,073.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.