Home / 99,003.96-136,570.32-58,678.92

Finding the Fourth Proportional to 99,003.96, 136,570.32 and 58,678.92

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Solution

The fourth proportional to 99,003.96, 136,570.32 and 58,678.92 is: 80,944.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,003.96 : 136,570.32 = 58,678.92 : x
  2. Step 2: Convert to fraction form
    99,003.96/136,570.32 = 58,678.92/x
  3. Step 3: Cross multiply
    99,003.96x = 136,570.32 × 58,678.92
  4. Step 4: Simplify right side
    99,003.96x = 8,013,798,881.65
  5. Step 5: Solve for x
    x = 8,013,798,881.65/99,003.96
  6. Step 6: Final answer
    x = 80,944.23

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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.