Home / 66,767.40-99,989.10-35,533.80

Finding the Fourth Proportional to 66,767.40, 99,989.10 and 35,533.80

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Solution

The fourth proportional to 66,767.40, 99,989.10 and 35,533.80 is: 53,214.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,767.40 : 99,989.10 = 35,533.80 : x
  2. Step 2: Convert to fraction form
    66,767.40/99,989.10 = 35,533.80/x
  3. Step 3: Cross multiply
    66,767.40x = 99,989.10 × 35,533.80
  4. Step 4: Simplify right side
    66,767.40x = 3,552,992,681.58
  5. Step 5: Solve for x
    x = 3,552,992,681.58/66,767.40
  6. Step 6: Final answer
    x = 53,214.48

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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.