Home / 56,261.93-84,401.28-20,720.51

Finding the Fourth Proportional to 56,261.93, 84,401.28 and 20,720.51

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Solution

The fourth proportional to 56,261.93, 84,401.28 and 20,720.51 is: 31,083.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,261.93 : 84,401.28 = 20,720.51 : x
  2. Step 2: Convert to fraction form
    56,261.93/84,401.28 = 20,720.51/x
  3. Step 3: Cross multiply
    56,261.93x = 84,401.28 × 20,720.51
  4. Step 4: Simplify right side
    56,261.93x = 1,748,837,462.65
  5. Step 5: Solve for x
    x = 1,748,837,462.65/56,261.93
  6. Step 6: Final answer
    x = 31,083.85

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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.