Home / 52,709.88-79,075.40-19,430.12

Finding the Fourth Proportional to 52,709.88, 79,075.40 and 19,430.12

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Solution

The fourth proportional to 52,709.88, 79,075.40 and 19,430.12 is: 29,149.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,709.88 : 79,075.40 = 19,430.12 : x
  2. Step 2: Convert to fraction form
    52,709.88/79,075.40 = 19,430.12/x
  3. Step 3: Cross multiply
    52,709.88x = 79,075.40 × 19,430.12
  4. Step 4: Simplify right side
    52,709.88x = 1,536,444,018.52
  5. Step 5: Solve for x
    x = 1,536,444,018.52/52,709.88
  6. Step 6: Final answer
    x = 29,149.07

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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.