Home / 51,109.81-70,531.53-28,448.31

Finding the Fourth Proportional to 51,109.81, 70,531.53 and 28,448.31

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Solution

The fourth proportional to 51,109.81, 70,531.53 and 28,448.31 is: 39,258.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,109.81 : 70,531.53 = 28,448.31 : x
  2. Step 2: Convert to fraction form
    51,109.81/70,531.53 = 28,448.31/x
  3. Step 3: Cross multiply
    51,109.81x = 70,531.53 × 28,448.31
  4. Step 4: Simplify right side
    51,109.81x = 2,006,502,687.97
  5. Step 5: Solve for x
    x = 2,006,502,687.97/51,109.81
  6. Step 6: Final answer
    x = 39,258.66

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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.