Home / 92,810.12-128,078.32-50,368.64

Finding the Fourth Proportional to 92,810.12, 128,078.32 and 50,368.64

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Solution

The fourth proportional to 92,810.12, 128,078.32 and 50,368.64 is: 69,508.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,810.12 : 128,078.32 = 50,368.64 : x
  2. Step 2: Convert to fraction form
    92,810.12/128,078.32 = 50,368.64/x
  3. Step 3: Cross multiply
    92,810.12x = 128,078.32 × 50,368.64
  4. Step 4: Simplify right side
    92,810.12x = 6,451,130,791.88
  5. Step 5: Solve for x
    x = 6,451,130,791.88/92,810.12
  6. Step 6: Final answer
    x = 69,508.92

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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.