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Finding the Fourth Proportional to 57,603.78, 79,503.39 and 45,757.53

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Solution

The fourth proportional to 57,603.78, 79,503.39 and 45,757.53 is: 63,153.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,603.78 : 79,503.39 = 45,757.53 : x
  2. Step 2: Convert to fraction form
    57,603.78/79,503.39 = 45,757.53/x
  3. Step 3: Cross multiply
    57,603.78x = 79,503.39 × 45,757.53
  4. Step 4: Simplify right side
    57,603.78x = 3,637,878,753.03
  5. Step 5: Solve for x
    x = 3,637,878,753.03/57,603.78
  6. Step 6: Final answer
    x = 63,153.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.