Home / 51,715.40-71,376.54-30,493.40

Finding the Fourth Proportional to 51,715.40, 71,376.54 and 30,493.40

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Solution

The fourth proportional to 51,715.40, 71,376.54 and 30,493.40 is: 42,086.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,715.40 : 71,376.54 = 30,493.40 : x
  2. Step 2: Convert to fraction form
    51,715.40/71,376.54 = 30,493.40/x
  3. Step 3: Cross multiply
    51,715.40x = 71,376.54 × 30,493.40
  4. Step 4: Simplify right side
    51,715.40x = 2,176,513,384.84
  5. Step 5: Solve for x
    x = 2,176,513,384.84/51,715.40
  6. Step 6: Final answer
    x = 42,086.37

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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.