Home / 85,591.02-128,405.94-46,147.26

Finding the Fourth Proportional to 85,591.02, 128,405.94 and 46,147.26

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Solution

The fourth proportional to 85,591.02, 128,405.94 and 46,147.26 is: 69,231.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,591.02 : 128,405.94 = 46,147.26 : x
  2. Step 2: Convert to fraction form
    85,591.02/128,405.94 = 46,147.26/x
  3. Step 3: Cross multiply
    85,591.02x = 128,405.94 × 46,147.26
  4. Step 4: Simplify right side
    85,591.02x = 5,925,582,298.72
  5. Step 5: Solve for x
    x = 5,925,582,298.72/85,591.02
  6. Step 6: Final answer
    x = 69,231.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.