Home / 78,338.10-117,502.29-25,028.76

Finding the Fourth Proportional to 78,338.10, 117,502.29 and 25,028.76

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Solution

The fourth proportional to 78,338.10, 117,502.29 and 25,028.76 is: 37,541.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,338.10 : 117,502.29 = 25,028.76 : x
  2. Step 2: Convert to fraction form
    78,338.10/117,502.29 = 25,028.76/x
  3. Step 3: Cross multiply
    78,338.10x = 117,502.29 × 25,028.76
  4. Step 4: Simplify right side
    78,338.10x = 2,940,936,615.86
  5. Step 5: Solve for x
    x = 2,940,936,615.86/78,338.10
  6. Step 6: Final answer
    x = 37,541.59

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1.5x scale

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.