Home / 77,557.28-116,314.62-21,384.20

Finding the Fourth Proportional to 77,557.28, 116,314.62 and 21,384.20

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Solution

The fourth proportional to 77,557.28, 116,314.62 and 21,384.20 is: 32,070.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,557.28 : 116,314.62 = 21,384.20 : x
  2. Step 2: Convert to fraction form
    77,557.28/116,314.62 = 21,384.20/x
  3. Step 3: Cross multiply
    77,557.28x = 116,314.62 × 21,384.20
  4. Step 4: Simplify right side
    77,557.28x = 2,487,295,097.00
  5. Step 5: Solve for x
    x = 2,487,295,097.00/77,557.28
  6. Step 6: Final answer
    x = 32,070.43

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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.