Home / 77,649.92-116,535.36-54,123.20

Finding the Fourth Proportional to 77,649.92, 116,535.36 and 54,123.20

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Solution

The fourth proportional to 77,649.92, 116,535.36 and 54,123.20 is: 81,226.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,649.92 : 116,535.36 = 54,123.20 : x
  2. Step 2: Convert to fraction form
    77,649.92/116,535.36 = 54,123.20/x
  3. Step 3: Cross multiply
    77,649.92x = 116,535.36 × 54,123.20
  4. Step 4: Simplify right side
    77,649.92x = 6,307,266,596.35
  5. Step 5: Solve for x
    x = 6,307,266,596.35/77,649.92
  6. Step 6: Final answer
    x = 81,226.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.