Home / 51,703.18-77,551.69-18,421.48

Finding the Fourth Proportional to 51,703.18, 77,551.69 and 18,421.48

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Solution

The fourth proportional to 51,703.18, 77,551.69 and 18,421.48 is: 27,631.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,703.18 : 77,551.69 = 18,421.48 : x
  2. Step 2: Convert to fraction form
    51,703.18/77,551.69 = 18,421.48/x
  3. Step 3: Cross multiply
    51,703.18x = 77,551.69 × 18,421.48
  4. Step 4: Simplify right side
    51,703.18x = 1,428,616,906.30
  5. Step 5: Solve for x
    x = 1,428,616,906.30/51,703.18
  6. Step 6: Final answer
    x = 27,631.12

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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.