Home / 91,931.64-126,871.09-69,230.58

Finding the Fourth Proportional to 91,931.64, 126,871.09 and 69,230.58

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Solution

The fourth proportional to 91,931.64, 126,871.09 and 69,230.58 is: 95,542.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,931.64 : 126,871.09 = 69,230.58 : x
  2. Step 2: Convert to fraction form
    91,931.64/126,871.09 = 69,230.58/x
  3. Step 3: Cross multiply
    91,931.64x = 126,871.09 × 69,230.58
  4. Step 4: Simplify right side
    91,931.64x = 8,783,359,600.16
  5. Step 5: Solve for x
    x = 8,783,359,600.16/91,931.64
  6. Step 6: Final answer
    x = 95,542.29

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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.