Home / 75,156.43-103,715.64-42,447.26

Finding the Fourth Proportional to 75,156.43, 103,715.64 and 42,447.26

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Solution

The fourth proportional to 75,156.43, 103,715.64 and 42,447.26 is: 58,577.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,156.43 : 103,715.64 = 42,447.26 : x
  2. Step 2: Convert to fraction form
    75,156.43/103,715.64 = 42,447.26/x
  3. Step 3: Cross multiply
    75,156.43x = 103,715.64 × 42,447.26
  4. Step 4: Simplify right side
    75,156.43x = 4,402,444,218.57
  5. Step 5: Solve for x
    x = 4,402,444,218.57/75,156.43
  6. Step 6: Final answer
    x = 58,577.08

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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.