Home / 93,019.24-128,314.02-55,305.64

Finding the Fourth Proportional to 93,019.24, 128,314.02 and 55,305.64

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Solution

The fourth proportional to 93,019.24, 128,314.02 and 55,305.64 is: 76,290.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,019.24 : 128,314.02 = 55,305.64 : x
  2. Step 2: Convert to fraction form
    93,019.24/128,314.02 = 55,305.64/x
  3. Step 3: Cross multiply
    93,019.24x = 128,314.02 × 55,305.64
  4. Step 4: Simplify right side
    93,019.24x = 7,096,488,997.07
  5. Step 5: Solve for x
    x = 7,096,488,997.07/93,019.24
  6. Step 6: Final answer
    x = 76,290.55

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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.