Home / 53,132.60-79,699.07-21,543.21

Finding the Fourth Proportional to 53,132.60, 79,699.07 and 21,543.21

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Solution

The fourth proportional to 53,132.60, 79,699.07 and 21,543.21 is: 32,314.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,132.60 : 79,699.07 = 21,543.21 : x
  2. Step 2: Convert to fraction form
    53,132.60/79,699.07 = 21,543.21/x
  3. Step 3: Cross multiply
    53,132.60x = 79,699.07 × 21,543.21
  4. Step 4: Simplify right side
    53,132.60x = 1,716,973,855.67
  5. Step 5: Solve for x
    x = 1,716,973,855.67/53,132.60
  6. Step 6: Final answer
    x = 32,314.88

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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.