Home / 66,423.40-99,500.70-41,386.60

Finding the Fourth Proportional to 66,423.40, 99,500.70 and 41,386.60

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Solution

The fourth proportional to 66,423.40, 99,500.70 and 41,386.60 is: 61,996.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,423.40 : 99,500.70 = 41,386.60 : x
  2. Step 2: Convert to fraction form
    66,423.40/99,500.70 = 41,386.60/x
  3. Step 3: Cross multiply
    66,423.40x = 99,500.70 × 41,386.60
  4. Step 4: Simplify right side
    66,423.40x = 4,117,995,670.62
  5. Step 5: Solve for x
    x = 4,117,995,670.62/66,423.40
  6. Step 6: Final answer
    x = 61,996.16

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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.