Home / 43,780.55-65,640.83-15,700.00

Finding the Fourth Proportional to 43,780.55, 65,640.83 and 15,700.00

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Solution

The fourth proportional to 43,780.55, 65,640.83 and 15,700.00 is: 23,539.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,780.55 : 65,640.83 = 15,700.00 : x
  2. Step 2: Convert to fraction form
    43,780.55/65,640.83 = 15,700.00/x
  3. Step 3: Cross multiply
    43,780.55x = 65,640.83 × 15,700.00
  4. Step 4: Simplify right side
    43,780.55x = 1,030,561,184.40
  5. Step 5: Solve for x
    x = 1,030,561,184.40/43,780.55
  6. Step 6: Final answer
    x = 23,539.25

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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.