Home / 42,780.00-64,165.09-11,193.11

Finding the Fourth Proportional to 42,780.00, 64,165.09 and 11,193.11

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Solution

The fourth proportional to 42,780.00, 64,165.09 and 11,193.11 is: 16,788.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,780.00 : 64,165.09 = 11,193.11 : x
  2. Step 2: Convert to fraction form
    42,780.00/64,165.09 = 11,193.11/x
  3. Step 3: Cross multiply
    42,780.00x = 64,165.09 × 11,193.11
  4. Step 4: Simplify right side
    42,780.00x = 718,206,533.74
  5. Step 5: Solve for x
    x = 718,206,533.74/42,780.00
  6. Step 6: Final answer
    x = 16,788.37

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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.