Home / 99,066.51-136,711.80-56,625.95

Finding the Fourth Proportional to 99,066.51, 136,711.80 and 56,625.95

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Solution

The fourth proportional to 99,066.51, 136,711.80 and 56,625.95 is: 78,143.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,066.51 : 136,711.80 = 56,625.95 : x
  2. Step 2: Convert to fraction form
    99,066.51/136,711.80 = 56,625.95/x
  3. Step 3: Cross multiply
    99,066.51x = 136,711.80 × 56,625.95
  4. Step 4: Simplify right side
    99,066.51x = 7,741,435,892.99
  5. Step 5: Solve for x
    x = 7,741,435,892.99/99,066.51
  6. Step 6: Final answer
    x = 78,143.82

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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.