Home / 87,735.79-121,075.03-47,449.59

Finding the Fourth Proportional to 87,735.79, 121,075.03 and 47,449.59

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Solution

The fourth proportional to 87,735.79, 121,075.03 and 47,449.59 is: 65,480.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,735.79 : 121,075.03 = 47,449.59 : x
  2. Step 2: Convert to fraction form
    87,735.79/121,075.03 = 47,449.59/x
  3. Step 3: Cross multiply
    87,735.79x = 121,075.03 × 47,449.59
  4. Step 4: Simplify right side
    87,735.79x = 5,744,960,532.74
  5. Step 5: Solve for x
    x = 5,744,960,532.74/87,735.79
  6. Step 6: Final answer
    x = 65,480.24

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1.5x scale

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.