Home / 53,131.68-79,688.30-19,852.02

Finding the Fourth Proportional to 53,131.68, 79,688.30 and 19,852.02

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Solution

The fourth proportional to 53,131.68, 79,688.30 and 19,852.02 is: 29,774.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,131.68 : 79,688.30 = 19,852.02 : x
  2. Step 2: Convert to fraction form
    53,131.68/79,688.30 = 19,852.02/x
  3. Step 3: Cross multiply
    53,131.68x = 79,688.30 × 19,852.02
  4. Step 4: Simplify right side
    53,131.68x = 1,581,973,626.11
  5. Step 5: Solve for x
    x = 1,581,973,626.11/53,131.68
  6. Step 6: Final answer
    x = 29,774.58

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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.