Home / 87,735.65-121,075.57-47,449.42

Finding the Fourth Proportional to 87,735.65, 121,075.57 and 47,449.42

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Solution

The fourth proportional to 87,735.65, 121,075.57 and 47,449.42 is: 65,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,735.65 : 121,075.57 = 47,449.42 : x
  2. Step 2: Convert to fraction form
    87,735.65/121,075.57 = 47,449.42/x
  3. Step 3: Cross multiply
    87,735.65x = 121,075.57 × 47,449.42
  4. Step 4: Simplify right side
    87,735.65x = 5,744,965,572.67
  5. Step 5: Solve for x
    x = 5,744,965,572.67/87,735.65
  6. Step 6: Final answer
    x = 65,480.40

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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.