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Finding the Fourth Proportional to 66,542.96, 99,075.46 and 65,612.96

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Solution

The fourth proportional to 66,542.96, 99,075.46 and 65,612.96 is: 97,690.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,542.96 : 99,075.46 = 65,612.96 : x
  2. Step 2: Convert to fraction form
    66,542.96/99,075.46 = 65,612.96/x
  3. Step 3: Cross multiply
    66,542.96x = 99,075.46 × 65,612.96
  4. Step 4: Simplify right side
    66,542.96x = 6,500,634,193.96
  5. Step 5: Solve for x
    x = 6,500,634,193.96/66,542.96
  6. Step 6: Final answer
    x = 97,690.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.