Home / 61,529.12-92,315.09-19,415.71

Finding the Fourth Proportional to 61,529.12, 92,315.09 and 19,415.71

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Solution

The fourth proportional to 61,529.12, 92,315.09 and 19,415.71 is: 29,130.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,529.12 : 92,315.09 = 19,415.71 : x
  2. Step 2: Convert to fraction form
    61,529.12/92,315.09 = 19,415.71/x
  3. Step 3: Cross multiply
    61,529.12x = 92,315.09 × 19,415.71
  4. Step 4: Simplify right side
    61,529.12x = 1,792,363,016.06
  5. Step 5: Solve for x
    x = 1,792,363,016.06/61,529.12
  6. Step 6: Final answer
    x = 29,130.32

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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.