Home / 79,160.54-109,241.70-42,862.38

Finding the Fourth Proportional to 79,160.54, 109,241.70 and 42,862.38

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Solution

The fourth proportional to 79,160.54, 109,241.70 and 42,862.38 is: 59,150.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,160.54 : 109,241.70 = 42,862.38 : x
  2. Step 2: Convert to fraction form
    79,160.54/109,241.70 = 42,862.38/x
  3. Step 3: Cross multiply
    79,160.54x = 109,241.70 × 42,862.38
  4. Step 4: Simplify right side
    79,160.54x = 4,682,358,686.86
  5. Step 5: Solve for x
    x = 4,682,358,686.86/79,160.54
  6. Step 6: Final answer
    x = 59,150.16

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1.5x scale

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.