Home / 51,387.36-70,913.25-31,244.82

Finding the Fourth Proportional to 51,387.36, 70,913.25 and 31,244.82

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Solution

The fourth proportional to 51,387.36, 70,913.25 and 31,244.82 is: 43,117.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,387.36 : 70,913.25 = 31,244.82 : x
  2. Step 2: Convert to fraction form
    51,387.36/70,913.25 = 31,244.82/x
  3. Step 3: Cross multiply
    51,387.36x = 70,913.25 × 31,244.82
  4. Step 4: Simplify right side
    51,387.36x = 2,215,671,731.87
  5. Step 5: Solve for x
    x = 2,215,671,731.87/51,387.36
  6. Step 6: Final answer
    x = 43,117.06

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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.