Home / 77,988.60-107,595.41-51,146.01

Finding the Fourth Proportional to 77,988.60, 107,595.41 and 51,146.01

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Solution

The fourth proportional to 77,988.60, 107,595.41 and 51,146.01 is: 70,562.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,988.60 : 107,595.41 = 51,146.01 : x
  2. Step 2: Convert to fraction form
    77,988.60/107,595.41 = 51,146.01/x
  3. Step 3: Cross multiply
    77,988.60x = 107,595.41 × 51,146.01
  4. Step 4: Simplify right side
    77,988.60x = 5,503,075,660.08
  5. Step 5: Solve for x
    x = 5,503,075,660.08/77,988.60
  6. Step 6: Final answer
    x = 70,562.57

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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.