Home / 91,845.24-126,731.34-54,114.36

Finding the Fourth Proportional to 91,845.24, 126,731.34 and 54,114.36

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Solution

The fourth proportional to 91,845.24, 126,731.34 and 54,114.36 is: 74,668.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,845.24 : 126,731.34 = 54,114.36 : x
  2. Step 2: Convert to fraction form
    91,845.24/126,731.34 = 54,114.36/x
  3. Step 3: Cross multiply
    91,845.24x = 126,731.34 × 54,114.36
  4. Step 4: Simplify right side
    91,845.24x = 6,857,985,356.04
  5. Step 5: Solve for x
    x = 6,857,985,356.04/91,845.24
  6. Step 6: Final answer
    x = 74,668.93

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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.