Home / 92,979.88-128,314.74-50,541.28

Finding the Fourth Proportional to 92,979.88, 128,314.74 and 50,541.28

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Solution

The fourth proportional to 92,979.88, 128,314.74 and 50,541.28 is: 69,748.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,979.88 : 128,314.74 = 50,541.28 : x
  2. Step 2: Convert to fraction form
    92,979.88/128,314.74 = 50,541.28/x
  3. Step 3: Cross multiply
    92,979.88x = 128,314.74 × 50,541.28
  4. Step 4: Simplify right side
    92,979.88x = 6,485,191,202.47
  5. Step 5: Solve for x
    x = 6,485,191,202.47/92,979.88
  6. Step 6: Final answer
    x = 69,748.33

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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.