Home / 84,125.12-116,026.70-53,913.20

Finding the Fourth Proportional to 84,125.12, 116,026.70 and 53,913.20

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Solution

The fourth proportional to 84,125.12, 116,026.70 and 53,913.20 is: 74,357.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,125.12 : 116,026.70 = 53,913.20 : x
  2. Step 2: Convert to fraction form
    84,125.12/116,026.70 = 53,913.20/x
  3. Step 3: Cross multiply
    84,125.12x = 116,026.70 × 53,913.20
  4. Step 4: Simplify right side
    84,125.12x = 6,255,369,832.74
  5. Step 5: Solve for x
    x = 6,255,369,832.74/84,125.12
  6. Step 6: Final answer
    x = 74,357.93

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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.