Home / 98,777.40-136,312.82-53,455.38

Finding the Fourth Proportional to 98,777.40, 136,312.82 and 53,455.38

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Solution

The fourth proportional to 98,777.40, 136,312.82 and 53,455.38 is: 73,768.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,777.40 : 136,312.82 = 53,455.38 : x
  2. Step 2: Convert to fraction form
    98,777.40/136,312.82 = 53,455.38/x
  3. Step 3: Cross multiply
    98,777.40x = 136,312.82 × 53,455.38
  4. Step 4: Simplify right side
    98,777.40x = 7,286,653,324.69
  5. Step 5: Solve for x
    x = 7,286,653,324.69/98,777.40
  6. Step 6: Final answer
    x = 73,768.43

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1.5x scale

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.