Home / 77,678.47-116,493-25,075.72

Finding the Fourth Proportional to 77,678.47, 116,493 and 25,075.72

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Solution

The fourth proportional to 77,678.47, 116,493 and 25,075.72 is: 37,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,678.47 : 116,493 = 25,075.72 : x
  2. Step 2: Convert to fraction form
    77,678.47/116,493 = 25,075.72/x
  3. Step 3: Cross multiply
    77,678.47x = 116,493 × 25,075.72
  4. Step 4: Simplify right side
    77,678.47x = 2,921,145,849.96
  5. Step 5: Solve for x
    x = 2,921,145,849.96/77,678.47
  6. Step 6: Final answer
    x = 37,605.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.