Home / 66,810.48-92,175.60-38,109.54

Finding the Fourth Proportional to 66,810.48, 92,175.60 and 38,109.54

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Solution

The fourth proportional to 66,810.48, 92,175.60 and 38,109.54 is: 52,578.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,810.48 : 92,175.60 = 38,109.54 : x
  2. Step 2: Convert to fraction form
    66,810.48/92,175.60 = 38,109.54/x
  3. Step 3: Cross multiply
    66,810.48x = 92,175.60 × 38,109.54
  4. Step 4: Simplify right side
    66,810.48x = 3,512,769,715.22
  5. Step 5: Solve for x
    x = 3,512,769,715.22/66,810.48
  6. Step 6: Final answer
    x = 52,578.12

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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.