Home / 52,713.13-79,050.65-21,130.42

Finding the Fourth Proportional to 52,713.13, 79,050.65 and 21,130.42

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Solution

The fourth proportional to 52,713.13, 79,050.65 and 21,130.42 is: 31,687.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,713.13 : 79,050.65 = 21,130.42 : x
  2. Step 2: Convert to fraction form
    52,713.13/79,050.65 = 21,130.42/x
  3. Step 3: Cross multiply
    52,713.13x = 79,050.65 × 21,130.42
  4. Step 4: Simplify right side
    52,713.13x = 1,670,373,040.52
  5. Step 5: Solve for x
    x = 1,670,373,040.52/52,713.13
  6. Step 6: Final answer
    x = 31,687.99

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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.