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Finding the Fourth Proportional to 66,683.52, 92,041.92 and 38,400.48

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Solution

The fourth proportional to 66,683.52, 92,041.92 and 38,400.48 is: 53,003.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,683.52 : 92,041.92 = 38,400.48 : x
  2. Step 2: Convert to fraction form
    66,683.52/92,041.92 = 38,400.48/x
  3. Step 3: Cross multiply
    66,683.52x = 92,041.92 × 38,400.48
  4. Step 4: Simplify right side
    66,683.52x = 3,534,453,908.12
  5. Step 5: Solve for x
    x = 3,534,453,908.12/66,683.52
  6. Step 6: Final answer
    x = 53,003.41

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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.