Home / 75,985.80-114,011.50-40,918.47

Finding the Fourth Proportional to 75,985.80, 114,011.50 and 40,918.47

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Solution

The fourth proportional to 75,985.80, 114,011.50 and 40,918.47 is: 61,395.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,985.80 : 114,011.50 = 40,918.47 : x
  2. Step 2: Convert to fraction form
    75,985.80/114,011.50 = 40,918.47/x
  3. Step 3: Cross multiply
    75,985.80x = 114,011.50 × 40,918.47
  4. Step 4: Simplify right side
    75,985.80x = 4,665,175,572.35
  5. Step 5: Solve for x
    x = 4,665,175,572.35/75,985.80
  6. Step 6: Final answer
    x = 61,395.36

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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.