Home / 85,860.41-128,776.03-22,681.22

Finding the Fourth Proportional to 85,860.41, 128,776.03 and 22,681.22

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Solution

The fourth proportional to 85,860.41, 128,776.03 and 22,681.22 is: 34,017.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,860.41 : 128,776.03 = 22,681.22 : x
  2. Step 2: Convert to fraction form
    85,860.41/128,776.03 = 22,681.22/x
  3. Step 3: Cross multiply
    85,860.41x = 128,776.03 × 22,681.22
  4. Step 4: Simplify right side
    85,860.41x = 2,920,796,766.57
  5. Step 5: Solve for x
    x = 2,920,796,766.57/85,860.41
  6. Step 6: Final answer
    x = 34,017.97

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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.