Home / 98,902.08-136,493.64-56,474.28

Finding the Fourth Proportional to 98,902.08, 136,493.64 and 56,474.28

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Solution

The fourth proportional to 98,902.08, 136,493.64 and 56,474.28 is: 77,939.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,902.08 : 136,493.64 = 56,474.28 : x
  2. Step 2: Convert to fraction form
    98,902.08/136,493.64 = 56,474.28/x
  3. Step 3: Cross multiply
    98,902.08x = 136,493.64 × 56,474.28
  4. Step 4: Simplify right side
    98,902.08x = 7,708,380,043.58
  5. Step 5: Solve for x
    x = 7,708,380,043.58/98,902.08
  6. Step 6: Final answer
    x = 77,939.51

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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.