Home / 84,000.16-125,913.84-57,619.36

Finding the Fourth Proportional to 84,000.16, 125,913.84 and 57,619.36

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Solution

The fourth proportional to 84,000.16, 125,913.84 and 57,619.36 is: 86,369.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,000.16 : 125,913.84 = 57,619.36 : x
  2. Step 2: Convert to fraction form
    84,000.16/125,913.84 = 57,619.36/x
  3. Step 3: Cross multiply
    84,000.16x = 125,913.84 × 57,619.36
  4. Step 4: Simplify right side
    84,000.16x = 7,255,074,875.94
  5. Step 5: Solve for x
    x = 7,255,074,875.94/84,000.16
  6. Step 6: Final answer
    x = 86,369.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.