Home / 77,075.40-106,236.72-51,572.58

Finding the Fourth Proportional to 77,075.40, 106,236.72 and 51,572.58

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Solution

The fourth proportional to 77,075.40, 106,236.72 and 51,572.58 is: 71,084.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,075.40 : 106,236.72 = 51,572.58 : x
  2. Step 2: Convert to fraction form
    77,075.40/106,236.72 = 51,572.58/x
  3. Step 3: Cross multiply
    77,075.40x = 106,236.72 × 51,572.58
  4. Step 4: Simplify right side
    77,075.40x = 5,478,901,741.14
  5. Step 5: Solve for x
    x = 5,478,901,741.14/77,075.40
  6. Step 6: Final answer
    x = 71,084.96

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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.