Home / 42,681.85-64,022.26-11,089.12

Finding the Fourth Proportional to 42,681.85, 64,022.26 and 11,089.12

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Solution

The fourth proportional to 42,681.85, 64,022.26 and 11,089.12 is: 16,633.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,681.85 : 64,022.26 = 11,089.12 : x
  2. Step 2: Convert to fraction form
    42,681.85/64,022.26 = 11,089.12/x
  3. Step 3: Cross multiply
    42,681.85x = 64,022.26 × 11,089.12
  4. Step 4: Simplify right side
    42,681.85x = 709,950,222.37
  5. Step 5: Solve for x
    x = 709,950,222.37/42,681.85
  6. Step 6: Final answer
    x = 16,633.54

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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.