Home / 51,003.81-70,390.01-30,865.66

Finding the Fourth Proportional to 51,003.81, 70,390.01 and 30,865.66

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Solution

The fourth proportional to 51,003.81, 70,390.01 and 30,865.66 is: 42,597.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,003.81 : 70,390.01 = 30,865.66 : x
  2. Step 2: Convert to fraction form
    51,003.81/70,390.01 = 30,865.66/x
  3. Step 3: Cross multiply
    51,003.81x = 70,390.01 × 30,865.66
  4. Step 4: Simplify right side
    51,003.81x = 2,172,634,017.25
  5. Step 5: Solve for x
    x = 2,172,634,017.25/51,003.81
  6. Step 6: Final answer
    x = 42,597.48

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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.