Home / 53,121.53-79,663.72-15,671.66

Finding the Fourth Proportional to 53,121.53, 79,663.72 and 15,671.66

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Solution

The fourth proportional to 53,121.53, 79,663.72 and 15,671.66 is: 23,502.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,121.53 : 79,663.72 = 15,671.66 : x
  2. Step 2: Convert to fraction form
    53,121.53/79,663.72 = 15,671.66/x
  3. Step 3: Cross multiply
    53,121.53x = 79,663.72 × 15,671.66
  4. Step 4: Simplify right side
    53,121.53x = 1,248,462,734.18
  5. Step 5: Solve for x
    x = 1,248,462,734.18/53,121.53
  6. Step 6: Final answer
    x = 23,502.01

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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.