Home / 53,211.42-79,818.80-19,925.15

Finding the Fourth Proportional to 53,211.42, 79,818.80 and 19,925.15

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Solution

The fourth proportional to 53,211.42, 79,818.80 and 19,925.15 is: 29,888.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,211.42 : 79,818.80 = 19,925.15 : x
  2. Step 2: Convert to fraction form
    53,211.42/79,818.80 = 19,925.15/x
  3. Step 3: Cross multiply
    53,211.42x = 79,818.80 × 19,925.15
  4. Step 4: Simplify right side
    53,211.42x = 1,590,401,064.10
  5. Step 5: Solve for x
    x = 1,590,401,064.10/53,211.42
  6. Step 6: Final answer
    x = 29,888.34

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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.