Home / 77,131.98-106,437.26-43,143.58

Finding the Fourth Proportional to 77,131.98, 106,437.26 and 43,143.58

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Solution

The fourth proportional to 77,131.98, 106,437.26 and 43,143.58 is: 59,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,131.98 : 106,437.26 = 43,143.58 : x
  2. Step 2: Convert to fraction form
    77,131.98/106,437.26 = 43,143.58/x
  3. Step 3: Cross multiply
    77,131.98x = 106,437.26 × 43,143.58
  4. Step 4: Simplify right side
    77,131.98x = 4,592,084,441.79
  5. Step 5: Solve for x
    x = 4,592,084,441.79/77,131.98
  6. Step 6: Final answer
    x = 59,535.42

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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.