Home / 77,962.20-116,935.96-21,807.32

Finding the Fourth Proportional to 77,962.20, 116,935.96 and 21,807.32

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Solution

The fourth proportional to 77,962.20, 116,935.96 and 21,807.32 is: 32,708.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,962.20 : 116,935.96 = 21,807.32 : x
  2. Step 2: Convert to fraction form
    77,962.20/116,935.96 = 21,807.32/x
  3. Step 3: Cross multiply
    77,962.20x = 116,935.96 × 21,807.32
  4. Step 4: Simplify right side
    77,962.20x = 2,550,059,899.23
  5. Step 5: Solve for x
    x = 2,550,059,899.23/77,962.20
  6. Step 6: Final answer
    x = 32,708.93

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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.