Home / 51,988.53-71,763.63-40,480.68

Finding the Fourth Proportional to 51,988.53, 71,763.63 and 40,480.68

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Solution

The fourth proportional to 51,988.53, 71,763.63 and 40,480.68 is: 55,878.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,988.53 : 71,763.63 = 40,480.68 : x
  2. Step 2: Convert to fraction form
    51,988.53/71,763.63 = 40,480.68/x
  3. Step 3: Cross multiply
    51,988.53x = 71,763.63 × 40,480.68
  4. Step 4: Simplify right side
    51,988.53x = 2,905,040,541.67
  5. Step 5: Solve for x
    x = 2,905,040,541.67/51,988.53
  6. Step 6: Final answer
    x = 55,878.49

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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.