Home / 51,219.99-70,688.25-31,082.00

Finding the Fourth Proportional to 51,219.99, 70,688.25 and 31,082.00

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Solution

The fourth proportional to 51,219.99, 70,688.25 and 31,082.00 is: 42,895.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,219.99 : 70,688.25 = 31,082.00 : x
  2. Step 2: Convert to fraction form
    51,219.99/70,688.25 = 31,082.00/x
  3. Step 3: Cross multiply
    51,219.99x = 70,688.25 × 31,082.00
  4. Step 4: Simplify right side
    51,219.99x = 2,197,131,833.06
  5. Step 5: Solve for x
    x = 2,197,131,833.06/51,219.99
  6. Step 6: Final answer
    x = 42,895.98

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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.