Home / 66,284.79-99,424.41-45,172.08

Finding the Fourth Proportional to 66,284.79, 99,424.41 and 45,172.08

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Solution

The fourth proportional to 66,284.79, 99,424.41 and 45,172.08 is: 67,756.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,284.79 : 99,424.41 = 45,172.08 : x
  2. Step 2: Convert to fraction form
    66,284.79/99,424.41 = 45,172.08/x
  3. Step 3: Cross multiply
    66,284.79x = 99,424.41 × 45,172.08
  4. Step 4: Simplify right side
    66,284.79x = 4,491,207,402.47
  5. Step 5: Solve for x
    x = 4,491,207,402.47/66,284.79
  6. Step 6: Final answer
    x = 67,756.23

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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.