Home / 42,779.50-64,169.01-11,614.75

Finding the Fourth Proportional to 42,779.50, 64,169.01 and 11,614.75

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Solution

The fourth proportional to 42,779.50, 64,169.01 and 11,614.75 is: 17,422.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,779.50 : 64,169.01 = 11,614.75 : x
  2. Step 2: Convert to fraction form
    42,779.50/64,169.01 = 11,614.75/x
  3. Step 3: Cross multiply
    42,779.50x = 64,169.01 × 11,614.75
  4. Step 4: Simplify right side
    42,779.50x = 745,307,008.90
  5. Step 5: Solve for x
    x = 745,307,008.90/42,779.50
  6. Step 6: Final answer
    x = 17,422.06

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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.