Home / 51,172.49-70,623.23-28,515.17

Finding the Fourth Proportional to 51,172.49, 70,623.23 and 28,515.17

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Solution

The fourth proportional to 51,172.49, 70,623.23 and 28,515.17 is: 39,353.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,172.49 : 70,623.23 = 28,515.17 : x
  2. Step 2: Convert to fraction form
    51,172.49/70,623.23 = 28,515.17/x
  3. Step 3: Cross multiply
    51,172.49x = 70,623.23 × 28,515.17
  4. Step 4: Simplify right side
    51,172.49x = 2,013,833,304.13
  5. Step 5: Solve for x
    x = 2,013,833,304.13/51,172.49
  6. Step 6: Final answer
    x = 39,353.83

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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.