Home / 66,005.06-91,101.85-55,376.24

Finding the Fourth Proportional to 66,005.06, 91,101.85 and 55,376.24

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Solution

The fourth proportional to 66,005.06, 91,101.85 and 55,376.24 is: 76,431.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,005.06 : 91,101.85 = 55,376.24 : x
  2. Step 2: Convert to fraction form
    66,005.06/91,101.85 = 55,376.24/x
  3. Step 3: Cross multiply
    66,005.06x = 91,101.85 × 55,376.24
  4. Step 4: Simplify right side
    66,005.06x = 5,044,877,316.09
  5. Step 5: Solve for x
    x = 5,044,877,316.09/66,005.06
  6. Step 6: Final answer
    x = 76,431.68

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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.