Home / 91,991.10-126,953.55-60,245.58

Finding the Fourth Proportional to 91,991.10, 126,953.55 and 60,245.58

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Solution

The fourth proportional to 91,991.10, 126,953.55 and 60,245.58 is: 83,142.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,991.10 : 126,953.55 = 60,245.58 : x
  2. Step 2: Convert to fraction form
    91,991.10/126,953.55 = 60,245.58/x
  3. Step 3: Cross multiply
    91,991.10x = 126,953.55 × 60,245.58
  4. Step 4: Simplify right side
    91,991.10x = 7,648,390,252.81
  5. Step 5: Solve for x
    x = 7,648,390,252.81/91,991.10
  6. Step 6: Final answer
    x = 83,142.72

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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.