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Finding the Fourth Proportional to 65,269.64, 90,075.68 and 36,980.84

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Solution

The fourth proportional to 65,269.64, 90,075.68 and 36,980.84 is: 51,035.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,269.64 : 90,075.68 = 36,980.84 : x
  2. Step 2: Convert to fraction form
    65,269.64/90,075.68 = 36,980.84/x
  3. Step 3: Cross multiply
    65,269.64x = 90,075.68 × 36,980.84
  4. Step 4: Simplify right side
    65,269.64x = 3,331,074,309.97
  5. Step 5: Solve for x
    x = 3,331,074,309.97/65,269.64
  6. Step 6: Final answer
    x = 51,035.59

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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.