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Finding the Fourth Proportional to 65,240.97, 90,075.90 and 50,106.59

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Solution

The fourth proportional to 65,240.97, 90,075.90 and 50,106.59 is: 69,180.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,240.97 : 90,075.90 = 50,106.59 : x
  2. Step 2: Convert to fraction form
    65,240.97/90,075.90 = 50,106.59/x
  3. Step 3: Cross multiply
    65,240.97x = 90,075.90 × 50,106.59
  4. Step 4: Simplify right side
    65,240.97x = 4,513,396,265.49
  5. Step 5: Solve for x
    x = 4,513,396,265.49/65,240.97
  6. Step 6: Final answer
    x = 69,180.40

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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.