Home / 92,979.32-128,310.75-50,538.15

Finding the Fourth Proportional to 92,979.32, 128,310.75 and 50,538.15

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Solution

The fourth proportional to 92,979.32, 128,310.75 and 50,538.15 is: 69,742.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,979.32 : 128,310.75 = 50,538.15 : x
  2. Step 2: Convert to fraction form
    92,979.32/128,310.75 = 50,538.15/x
  3. Step 3: Cross multiply
    92,979.32x = 128,310.75 × 50,538.15
  4. Step 4: Simplify right side
    92,979.32x = 6,484,587,930.11
  5. Step 5: Solve for x
    x = 6,484,587,930.11/92,979.32
  6. Step 6: Final answer
    x = 69,742.26

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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.