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Finding the Fourth Proportional to 57,435.66, 86,153.25 and 15,315.66

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Solution

The fourth proportional to 57,435.66, 86,153.25 and 15,315.66 is: 22,973.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,435.66 : 86,153.25 = 15,315.66 : x
  2. Step 2: Convert to fraction form
    57,435.66/86,153.25 = 15,315.66/x
  3. Step 3: Cross multiply
    57,435.66x = 86,153.25 × 15,315.66
  4. Step 4: Simplify right side
    57,435.66x = 1,319,493,884.90
  5. Step 5: Solve for x
    x = 1,319,493,884.90/57,435.66
  6. Step 6: Final answer
    x = 22,973.43

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1.5x scale

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.