Home / 91,742.60-126,616.50-54,020.36

Finding the Fourth Proportional to 91,742.60, 126,616.50 and 54,020.36

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Solution

The fourth proportional to 91,742.60, 126,616.50 and 54,020.36 is: 74,554.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,742.60 : 126,616.50 = 54,020.36 : x
  2. Step 2: Convert to fraction form
    91,742.60/126,616.50 = 54,020.36/x
  3. Step 3: Cross multiply
    91,742.60x = 126,616.50 × 54,020.36
  4. Step 4: Simplify right side
    91,742.60x = 6,839,868,911.94
  5. Step 5: Solve for x
    x = 6,839,868,911.94/91,742.60
  6. Step 6: Final answer
    x = 74,554.99

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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.