Home / 53,159.15-79,772.11-21,569.35

Finding the Fourth Proportional to 53,159.15, 79,772.11 and 21,569.35

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Solution

The fourth proportional to 53,159.15, 79,772.11 and 21,569.35 is: 32,367.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,159.15 : 79,772.11 = 21,569.35 : x
  2. Step 2: Convert to fraction form
    53,159.15/79,772.11 = 21,569.35/x
  3. Step 3: Cross multiply
    53,159.15x = 79,772.11 × 21,569.35
  4. Step 4: Simplify right side
    53,159.15x = 1,720,632,416.61
  5. Step 5: Solve for x
    x = 1,720,632,416.61/53,159.15
  6. Step 6: Final answer
    x = 32,367.57

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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.