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Finding the Fourth Proportional to 51,663.34, 71,329.03 and 31,531.89

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Solution

The fourth proportional to 51,663.34, 71,329.03 and 31,531.89 is: 43,534.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,663.34 : 71,329.03 = 31,531.89 : x
  2. Step 2: Convert to fraction form
    51,663.34/71,329.03 = 31,531.89/x
  3. Step 3: Cross multiply
    51,663.34x = 71,329.03 × 31,531.89
  4. Step 4: Simplify right side
    51,663.34x = 2,249,139,204.49
  5. Step 5: Solve for x
    x = 2,249,139,204.49/51,663.34
  6. Step 6: Final answer
    x = 43,534.53

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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.