Home / 55,775.30-83,663.10-39,209.45

Finding the Fourth Proportional to 55,775.30, 83,663.10 and 39,209.45

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Solution

The fourth proportional to 55,775.30, 83,663.10 and 39,209.45 is: 58,814.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,775.30 : 83,663.10 = 39,209.45 : x
  2. Step 2: Convert to fraction form
    55,775.30/83,663.10 = 39,209.45/x
  3. Step 3: Cross multiply
    55,775.30x = 83,663.10 × 39,209.45
  4. Step 4: Simplify right side
    55,775.30x = 3,280,383,717.98
  5. Step 5: Solve for x
    x = 3,280,383,717.98/55,775.30
  6. Step 6: Final answer
    x = 58,814.28

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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.