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Finding the Fourth Proportional to 66,807.60, 92,204.60 and 38,127.12

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Solution

The fourth proportional to 66,807.60, 92,204.60 and 38,127.12 is: 52,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,807.60 : 92,204.60 = 38,127.12 : x
  2. Step 2: Convert to fraction form
    66,807.60/92,204.60 = 38,127.12/x
  3. Step 3: Cross multiply
    66,807.60x = 92,204.60 × 38,127.12
  4. Step 4: Simplify right side
    66,807.60x = 3,515,495,848.75
  5. Step 5: Solve for x
    x = 3,515,495,848.75/66,807.60
  6. Step 6: Final answer
    x = 52,621.20

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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.