Home / 91,724.16-126,605.60-54,020.32

Finding the Fourth Proportional to 91,724.16, 126,605.60 and 54,020.32

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Solution

The fourth proportional to 91,724.16, 126,605.60 and 54,020.32 is: 74,563.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,724.16 : 126,605.60 = 54,020.32 : x
  2. Step 2: Convert to fraction form
    91,724.16/126,605.60 = 54,020.32/x
  3. Step 3: Cross multiply
    91,724.16x = 126,605.60 × 54,020.32
  4. Step 4: Simplify right side
    91,724.16x = 6,839,275,025.79
  5. Step 5: Solve for x
    x = 6,839,275,025.79/91,724.16
  6. Step 6: Final answer
    x = 74,563.51

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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.