Home / 54,887.18-75,748.76-31,018.81

Finding the Fourth Proportional to 54,887.18, 75,748.76 and 31,018.81

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Solution

The fourth proportional to 54,887.18, 75,748.76 and 31,018.81 is: 42,808.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,887.18 : 75,748.76 = 31,018.81 : x
  2. Step 2: Convert to fraction form
    54,887.18/75,748.76 = 31,018.81/x
  3. Step 3: Cross multiply
    54,887.18x = 75,748.76 × 31,018.81
  4. Step 4: Simplify right side
    54,887.18x = 2,349,636,394.18
  5. Step 5: Solve for x
    x = 2,349,636,394.18/54,887.18
  6. Step 6: Final answer
    x = 42,808.47

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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.