Home / 51,403.61-70,909.62-31,266.65

Finding the Fourth Proportional to 51,403.61, 70,909.62 and 31,266.65

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Solution

The fourth proportional to 51,403.61, 70,909.62 and 31,266.65 is: 43,131.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,403.61 : 70,909.62 = 31,266.65 : x
  2. Step 2: Convert to fraction form
    51,403.61/70,909.62 = 31,266.65/x
  3. Step 3: Cross multiply
    51,403.61x = 70,909.62 × 31,266.65
  4. Step 4: Simplify right side
    51,403.61x = 2,217,106,270.17
  5. Step 5: Solve for x
    x = 2,217,106,270.17/51,403.61
  6. Step 6: Final answer
    x = 43,131.33

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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.