Home / 99,112.40-136,776.13-53,790.77

Finding the Fourth Proportional to 99,112.40, 136,776.13 and 53,790.77

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Solution

The fourth proportional to 99,112.40, 136,776.13 and 53,790.77 is: 74,231.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,112.40 : 136,776.13 = 53,790.77 : x
  2. Step 2: Convert to fraction form
    99,112.40/136,776.13 = 53,790.77/x
  3. Step 3: Cross multiply
    99,112.40x = 136,776.13 × 53,790.77
  4. Step 4: Simplify right side
    99,112.40x = 7,357,293,359.44
  5. Step 5: Solve for x
    x = 7,357,293,359.44/99,112.40
  6. Step 6: Final answer
    x = 74,231.82

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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.