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Finding the Fourth Proportional to 65,755.80, 90,741.18 and 37,075.22

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Solution

The fourth proportional to 65,755.80, 90,741.18 and 37,075.22 is: 51,162.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,755.80 : 90,741.18 = 37,075.22 : x
  2. Step 2: Convert to fraction form
    65,755.80/90,741.18 = 37,075.22/x
  3. Step 3: Cross multiply
    65,755.80x = 90,741.18 × 37,075.22
  4. Step 4: Simplify right side
    65,755.80x = 3,364,248,757.85
  5. Step 5: Solve for x
    x = 3,364,248,757.85/65,755.80
  6. Step 6: Final answer
    x = 51,162.77

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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.