Home / 57,328.65-85,981.30-21,777.52

Finding the Fourth Proportional to 57,328.65, 85,981.30 and 21,777.52

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Solution

The fourth proportional to 57,328.65, 85,981.30 and 21,777.52 is: 32,661.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,328.65 : 85,981.30 = 21,777.52 : x
  2. Step 2: Convert to fraction form
    57,328.65/85,981.30 = 21,777.52/x
  3. Step 3: Cross multiply
    57,328.65x = 85,981.30 × 21,777.52
  4. Step 4: Simplify right side
    57,328.65x = 1,872,459,480.38
  5. Step 5: Solve for x
    x = 1,872,459,480.38/57,328.65
  6. Step 6: Final answer
    x = 32,661.85

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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.