Home / 98,621.64-136,089.18-55,604.16

Finding the Fourth Proportional to 98,621.64, 136,089.18 and 55,604.16

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Solution

The fourth proportional to 98,621.64, 136,089.18 and 55,604.16 is: 76,728.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,621.64 : 136,089.18 = 55,604.16 : x
  2. Step 2: Convert to fraction form
    98,621.64/136,089.18 = 55,604.16/x
  3. Step 3: Cross multiply
    98,621.64x = 136,089.18 × 55,604.16
  4. Step 4: Simplify right side
    98,621.64x = 7,567,124,538.99
  5. Step 5: Solve for x
    x = 7,567,124,538.99/98,621.64
  6. Step 6: Final answer
    x = 76,728.85

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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.