Home / 53,117.01-79,703.28-21,530.43

Finding the Fourth Proportional to 53,117.01, 79,703.28 and 21,530.43

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Solution

The fourth proportional to 53,117.01, 79,703.28 and 21,530.43 is: 32,306.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,117.01 : 79,703.28 = 21,530.43 : x
  2. Step 2: Convert to fraction form
    53,117.01/79,703.28 = 21,530.43/x
  3. Step 3: Cross multiply
    53,117.01x = 79,703.28 × 21,530.43
  4. Step 4: Simplify right side
    53,117.01x = 1,716,045,890.81
  5. Step 5: Solve for x
    x = 1,716,045,890.81/53,117.01
  6. Step 6: Final answer
    x = 32,306.90

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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.