Home / 77,139.13-106,450.59-43,605.13

Finding the Fourth Proportional to 77,139.13, 106,450.59 and 43,605.13

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Solution

The fourth proportional to 77,139.13, 106,450.59 and 43,605.13 is: 60,174.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,139.13 : 106,450.59 = 43,605.13 : x
  2. Step 2: Convert to fraction form
    77,139.13/106,450.59 = 43,605.13/x
  3. Step 3: Cross multiply
    77,139.13x = 106,450.59 × 43,605.13
  4. Step 4: Simplify right side
    77,139.13x = 4,641,791,815.53
  5. Step 5: Solve for x
    x = 4,641,791,815.53/77,139.13
  6. Step 6: Final answer
    x = 60,174.28

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1.5x scale

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.