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Finding the Fourth Proportional to 66,670.77, 92,005.70 and 37,989.62

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Solution

The fourth proportional to 66,670.77, 92,005.70 and 37,989.62 is: 52,425.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,670.77 : 92,005.70 = 37,989.62 : x
  2. Step 2: Convert to fraction form
    66,670.77/92,005.70 = 37,989.62/x
  3. Step 3: Cross multiply
    66,670.77x = 92,005.70 × 37,989.62
  4. Step 4: Simplify right side
    66,670.77x = 3,495,260,930.86
  5. Step 5: Solve for x
    x = 3,495,260,930.86/66,670.77
  6. Step 6: Final answer
    x = 52,425.69

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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.