Home / 84,039.32-115,937.52-60,157.28

Finding the Fourth Proportional to 84,039.32, 115,937.52 and 60,157.28

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Solution

The fourth proportional to 84,039.32, 115,937.52 and 60,157.28 is: 82,990.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,039.32 : 115,937.52 = 60,157.28 : x
  2. Step 2: Convert to fraction form
    84,039.32/115,937.52 = 60,157.28/x
  3. Step 3: Cross multiply
    84,039.32x = 115,937.52 × 60,157.28
  4. Step 4: Simplify right side
    84,039.32x = 6,974,485,853.15
  5. Step 5: Solve for x
    x = 6,974,485,853.15/84,039.32
  6. Step 6: Final answer
    x = 82,990.75

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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.