Home / 86,888.28-119,890.08-51,079.80

Finding the Fourth Proportional to 86,888.28, 119,890.08 and 51,079.80

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Solution

The fourth proportional to 86,888.28, 119,890.08 and 51,079.80 is: 70,480.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,888.28 : 119,890.08 = 51,079.80 : x
  2. Step 2: Convert to fraction form
    86,888.28/119,890.08 = 51,079.80/x
  3. Step 3: Cross multiply
    86,888.28x = 119,890.08 × 51,079.80
  4. Step 4: Simplify right side
    86,888.28x = 6,123,961,308.38
  5. Step 5: Solve for x
    x = 6,123,961,308.38/86,888.28
  6. Step 6: Final answer
    x = 70,480.87

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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.