Home / 55,563.60-83,287.08-39,972.72

Finding the Fourth Proportional to 55,563.60, 83,287.08 and 39,972.72

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Solution

The fourth proportional to 55,563.60, 83,287.08 and 39,972.72 is: 59,917.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,563.60 : 83,287.08 = 39,972.72 : x
  2. Step 2: Convert to fraction form
    55,563.60/83,287.08 = 39,972.72/x
  3. Step 3: Cross multiply
    55,563.60x = 83,287.08 × 39,972.72
  4. Step 4: Simplify right side
    55,563.60x = 3,329,211,128.46
  5. Step 5: Solve for x
    x = 3,329,211,128.46/55,563.60
  6. Step 6: Final answer
    x = 59,917.12

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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.