Home / 51,156.34-76,651.08-31,393.18

Finding the Fourth Proportional to 51,156.34, 76,651.08 and 31,393.18

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Solution

The fourth proportional to 51,156.34, 76,651.08 and 31,393.18 is: 47,038.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,156.34 : 76,651.08 = 31,393.18 : x
  2. Step 2: Convert to fraction form
    51,156.34/76,651.08 = 31,393.18/x
  3. Step 3: Cross multiply
    51,156.34x = 76,651.08 × 31,393.18
  4. Step 4: Simplify right side
    51,156.34x = 2,406,321,151.63
  5. Step 5: Solve for x
    x = 2,406,321,151.63/51,156.34
  6. Step 6: Final answer
    x = 47,038.57

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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.