Home / 56,780.85-85,176.54-19,328.34

Finding the Fourth Proportional to 56,780.85, 85,176.54 and 19,328.34

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Solution

The fourth proportional to 56,780.85, 85,176.54 and 19,328.34 is: 28,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,780.85 : 85,176.54 = 19,328.34 : x
  2. Step 2: Convert to fraction form
    56,780.85/85,176.54 = 19,328.34/x
  3. Step 3: Cross multiply
    56,780.85x = 85,176.54 × 19,328.34
  4. Step 4: Simplify right side
    56,780.85x = 1,646,321,125.14
  5. Step 5: Solve for x
    x = 1,646,321,125.14/56,780.85
  6. Step 6: Final answer
    x = 28,994.30

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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.