Home / 54,184.56-81,214.47-20,887.98

Finding the Fourth Proportional to 54,184.56, 81,214.47 and 20,887.98

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Solution

The fourth proportional to 54,184.56, 81,214.47 and 20,887.98 is: 31,307.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,184.56 : 81,214.47 = 20,887.98 : x
  2. Step 2: Convert to fraction form
    54,184.56/81,214.47 = 20,887.98/x
  3. Step 3: Cross multiply
    54,184.56x = 81,214.47 × 20,887.98
  4. Step 4: Simplify right side
    54,184.56x = 1,696,406,225.07
  5. Step 5: Solve for x
    x = 1,696,406,225.07/54,184.56
  6. Step 6: Final answer
    x = 31,307.93

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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.