Home / 85,435.02-128,152.26-23,105.52

Finding the Fourth Proportional to 85,435.02, 128,152.26 and 23,105.52

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Solution

The fourth proportional to 85,435.02, 128,152.26 and 23,105.52 is: 34,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,435.02 : 128,152.26 = 23,105.52 : x
  2. Step 2: Convert to fraction form
    85,435.02/128,152.26 = 23,105.52/x
  3. Step 3: Cross multiply
    85,435.02x = 128,152.26 × 23,105.52
  4. Step 4: Simplify right side
    85,435.02x = 2,961,024,606.48
  5. Step 5: Solve for x
    x = 2,961,024,606.48/85,435.02
  6. Step 6: Final answer
    x = 34,658.21

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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.