Home / 77,331.36-116,018.90-45,769.30

Finding the Fourth Proportional to 77,331.36, 116,018.90 and 45,769.30

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Solution

The fourth proportional to 77,331.36, 116,018.90 and 45,769.30 is: 68,666.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,331.36 : 116,018.90 = 45,769.30 : x
  2. Step 2: Convert to fraction form
    77,331.36/116,018.90 = 45,769.30/x
  3. Step 3: Cross multiply
    77,331.36x = 116,018.90 × 45,769.30
  4. Step 4: Simplify right side
    77,331.36x = 5,310,103,839.77
  5. Step 5: Solve for x
    x = 5,310,103,839.77/77,331.36
  6. Step 6: Final answer
    x = 68,666.89

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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.