Home / 56,139.48-84,184.58-21,054.53

Finding the Fourth Proportional to 56,139.48, 84,184.58 and 21,054.53

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Solution

The fourth proportional to 56,139.48, 84,184.58 and 21,054.53 is: 31,572.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,139.48 : 84,184.58 = 21,054.53 : x
  2. Step 2: Convert to fraction form
    56,139.48/84,184.58 = 21,054.53/x
  3. Step 3: Cross multiply
    56,139.48x = 84,184.58 × 21,054.53
  4. Step 4: Simplify right side
    56,139.48x = 1,772,467,028.25
  5. Step 5: Solve for x
    x = 1,772,467,028.25/56,139.48
  6. Step 6: Final answer
    x = 31,572.56

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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.