Home / 66,385.02-91,521.78-64,321.14

Finding the Fourth Proportional to 66,385.02, 91,521.78 and 64,321.14

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Solution

The fourth proportional to 66,385.02, 91,521.78 and 64,321.14 is: 88,676.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,385.02 : 91,521.78 = 64,321.14 : x
  2. Step 2: Convert to fraction form
    66,385.02/91,521.78 = 64,321.14/x
  3. Step 3: Cross multiply
    66,385.02x = 91,521.78 × 64,321.14
  4. Step 4: Simplify right side
    66,385.02x = 5,886,785,224.43
  5. Step 5: Solve for x
    x = 5,886,785,224.43/66,385.02
  6. Step 6: Final answer
    x = 88,676.41

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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.