Home / 74,354.55-102,609.36-40,363.02

Finding the Fourth Proportional to 74,354.55, 102,609.36 and 40,363.02

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Solution

The fourth proportional to 74,354.55, 102,609.36 and 40,363.02 is: 55,701.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,354.55 : 102,609.36 = 40,363.02 : x
  2. Step 2: Convert to fraction form
    74,354.55/102,609.36 = 40,363.02/x
  3. Step 3: Cross multiply
    74,354.55x = 102,609.36 × 40,363.02
  4. Step 4: Simplify right side
    74,354.55x = 4,141,623,649.87
  5. Step 5: Solve for x
    x = 4,141,623,649.87/74,354.55
  6. Step 6: Final answer
    x = 55,701.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.