Home / 75,515.80-113,241.30-38,061.40

Finding the Fourth Proportional to 75,515.80, 113,241.30 and 38,061.40

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Solution

The fourth proportional to 75,515.80, 113,241.30 and 38,061.40 is: 57,075.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,515.80 : 113,241.30 = 38,061.40 : x
  2. Step 2: Convert to fraction form
    75,515.80/113,241.30 = 38,061.40/x
  3. Step 3: Cross multiply
    75,515.80x = 113,241.30 × 38,061.40
  4. Step 4: Simplify right side
    75,515.80x = 4,310,122,415.82
  5. Step 5: Solve for x
    x = 4,310,122,415.82/75,515.80
  6. Step 6: Final answer
    x = 57,075.77

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1.5x scale

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.