Home / 87,941.52-121,414.68-61,075.44

Finding the Fourth Proportional to 87,941.52, 121,414.68 and 61,075.44

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Solution

The fourth proportional to 87,941.52, 121,414.68 and 61,075.44 is: 84,322.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,941.52 : 121,414.68 = 61,075.44 : x
  2. Step 2: Convert to fraction form
    87,941.52/121,414.68 = 61,075.44/x
  3. Step 3: Cross multiply
    87,941.52x = 121,414.68 × 61,075.44
  4. Step 4: Simplify right side
    87,941.52x = 7,415,455,003.46
  5. Step 5: Solve for x
    x = 7,415,455,003.46/87,941.52
  6. Step 6: Final answer
    x = 84,322.57

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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.