Home / 66,770.52-92,128.57-39,533.08

Finding the Fourth Proportional to 66,770.52, 92,128.57 and 39,533.08

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Solution

The fourth proportional to 66,770.52, 92,128.57 and 39,533.08 is: 54,546.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,770.52 : 92,128.57 = 39,533.08 : x
  2. Step 2: Convert to fraction form
    66,770.52/92,128.57 = 39,533.08/x
  3. Step 3: Cross multiply
    66,770.52x = 92,128.57 × 39,533.08
  4. Step 4: Simplify right side
    66,770.52x = 3,642,126,128.10
  5. Step 5: Solve for x
    x = 3,642,126,128.10/66,770.52
  6. Step 6: Final answer
    x = 54,546.92

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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.