Home / 53,319.35-79,970.83-17,781.29

Finding the Fourth Proportional to 53,319.35, 79,970.83 and 17,781.29

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Solution

The fourth proportional to 53,319.35, 79,970.83 and 17,781.29 is: 26,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,319.35 : 79,970.83 = 17,781.29 : x
  2. Step 2: Convert to fraction form
    53,319.35/79,970.83 = 17,781.29/x
  3. Step 3: Cross multiply
    53,319.35x = 79,970.83 × 17,781.29
  4. Step 4: Simplify right side
    53,319.35x = 1,421,984,675.24
  5. Step 5: Solve for x
    x = 1,421,984,675.24/53,319.35
  6. Step 6: Final answer
    x = 26,669.20

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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.