Home / 56,810.22-78,401.55-31,659.66

Finding the Fourth Proportional to 56,810.22, 78,401.55 and 31,659.66

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Solution

The fourth proportional to 56,810.22, 78,401.55 and 31,659.66 is: 43,692.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,810.22 : 78,401.55 = 31,659.66 : x
  2. Step 2: Convert to fraction form
    56,810.22/78,401.55 = 31,659.66/x
  3. Step 3: Cross multiply
    56,810.22x = 78,401.55 × 31,659.66
  4. Step 4: Simplify right side
    56,810.22x = 2,482,166,416.47
  5. Step 5: Solve for x
    x = 2,482,166,416.47/56,810.22
  6. Step 6: Final answer
    x = 43,692.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.