Home / 43,815.40-65,723.10-42,519.40

Finding the Fourth Proportional to 43,815.40, 65,723.10 and 42,519.40

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Solution

The fourth proportional to 43,815.40, 65,723.10 and 42,519.40 is: 63,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,815.40 : 65,723.10 = 42,519.40 : x
  2. Step 2: Convert to fraction form
    43,815.40/65,723.10 = 42,519.40/x
  3. Step 3: Cross multiply
    43,815.40x = 65,723.10 × 42,519.40
  4. Step 4: Simplify right side
    43,815.40x = 2,794,506,778.14
  5. Step 5: Solve for x
    x = 2,794,506,778.14/43,815.40
  6. Step 6: Final answer
    x = 63,779.10

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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.