Home / 66,780.36-92,154.04-36,565.12

Finding the Fourth Proportional to 66,780.36, 92,154.04 and 36,565.12

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Solution

The fourth proportional to 66,780.36, 92,154.04 and 36,565.12 is: 50,458.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,780.36 : 92,154.04 = 36,565.12 : x
  2. Step 2: Convert to fraction form
    66,780.36/92,154.04 = 36,565.12/x
  3. Step 3: Cross multiply
    66,780.36x = 92,154.04 × 36,565.12
  4. Step 4: Simplify right side
    66,780.36x = 3,369,623,531.08
  5. Step 5: Solve for x
    x = 3,369,623,531.08/66,780.36
  6. Step 6: Final answer
    x = 50,458.30

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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.