Home / 75,112.40-103,666.50-42,846.86

Finding the Fourth Proportional to 75,112.40, 103,666.50 and 42,846.86

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Solution

The fourth proportional to 75,112.40, 103,666.50 and 42,846.86 is: 59,135.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,112.40 : 103,666.50 = 42,846.86 : x
  2. Step 2: Convert to fraction form
    75,112.40/103,666.50 = 42,846.86/x
  3. Step 3: Cross multiply
    75,112.40x = 103,666.50 × 42,846.86
  4. Step 4: Simplify right side
    75,112.40x = 4,441,784,012.19
  5. Step 5: Solve for x
    x = 4,441,784,012.19/75,112.40
  6. Step 6: Final answer
    x = 59,135.16

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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.