Home / 75,781.98-113,681.75-25,185.53

Finding the Fourth Proportional to 75,781.98, 113,681.75 and 25,185.53

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Solution

The fourth proportional to 75,781.98, 113,681.75 and 25,185.53 is: 37,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,781.98 : 113,681.75 = 25,185.53 : x
  2. Step 2: Convert to fraction form
    75,781.98/113,681.75 = 25,185.53/x
  3. Step 3: Cross multiply
    75,781.98x = 113,681.75 × 25,185.53
  4. Step 4: Simplify right side
    75,781.98x = 2,863,134,430.74
  5. Step 5: Solve for x
    x = 2,863,134,430.74/75,781.98
  6. Step 6: Final answer
    x = 37,781.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.