Home / 66,453.42-99,681.93-21,476.70

Finding the Fourth Proportional to 66,453.42, 99,681.93 and 21,476.70

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Solution

The fourth proportional to 66,453.42, 99,681.93 and 21,476.70 is: 32,215.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,453.42 : 99,681.93 = 21,476.70 : x
  2. Step 2: Convert to fraction form
    66,453.42/99,681.93 = 21,476.70/x
  3. Step 3: Cross multiply
    66,453.42x = 99,681.93 × 21,476.70
  4. Step 4: Simplify right side
    66,453.42x = 2,140,838,906.03
  5. Step 5: Solve for x
    x = 2,140,838,906.03/66,453.42
  6. Step 6: Final answer
    x = 32,215.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.