Home / 77,051.89-106,329.19-45,220.11

Finding the Fourth Proportional to 77,051.89, 106,329.19 and 45,220.11

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Solution

The fourth proportional to 77,051.89, 106,329.19 and 45,220.11 is: 62,402.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,051.89 : 106,329.19 = 45,220.11 : x
  2. Step 2: Convert to fraction form
    77,051.89/106,329.19 = 45,220.11/x
  3. Step 3: Cross multiply
    77,051.89x = 106,329.19 × 45,220.11
  4. Step 4: Simplify right side
    77,051.89x = 4,808,217,668.01
  5. Step 5: Solve for x
    x = 4,808,217,668.01/77,051.89
  6. Step 6: Final answer
    x = 62,402.33

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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.