Home / 53,121.65-79,663.91-15,671.78

Finding the Fourth Proportional to 53,121.65, 79,663.91 and 15,671.78

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Solution

The fourth proportional to 53,121.65, 79,663.91 and 15,671.78 is: 23,502.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,121.65 : 79,663.91 = 15,671.78 : x
  2. Step 2: Convert to fraction form
    53,121.65/79,663.91 = 15,671.78/x
  3. Step 3: Cross multiply
    53,121.65x = 79,663.91 × 15,671.78
  4. Step 4: Simplify right side
    53,121.65x = 1,248,475,392.26
  5. Step 5: Solve for x
    x = 1,248,475,392.26/53,121.65
  6. Step 6: Final answer
    x = 23,502.19

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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.