Home / 51,988.58-71,763.65-40,480.71

Finding the Fourth Proportional to 51,988.58, 71,763.65 and 40,480.71

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Solution

The fourth proportional to 51,988.58, 71,763.65 and 40,480.71 is: 55,878.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,988.58 : 71,763.65 = 40,480.71 : x
  2. Step 2: Convert to fraction form
    51,988.58/71,763.65 = 40,480.71/x
  3. Step 3: Cross multiply
    51,988.58x = 71,763.65 × 40,480.71
  4. Step 4: Simplify right side
    51,988.58x = 2,905,043,301.79
  5. Step 5: Solve for x
    x = 2,905,043,301.79/51,988.58
  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.