Home / 85,377.02-128,046.38-26,213.20

Finding the Fourth Proportional to 85,377.02, 128,046.38 and 26,213.20

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Solution

The fourth proportional to 85,377.02, 128,046.38 and 26,213.20 is: 39,313.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,377.02 : 128,046.38 = 26,213.20 : x
  2. Step 2: Convert to fraction form
    85,377.02/128,046.38 = 26,213.20/x
  3. Step 3: Cross multiply
    85,377.02x = 128,046.38 × 26,213.20
  4. Step 4: Simplify right side
    85,377.02x = 3,356,505,368.22
  5. Step 5: Solve for x
    x = 3,356,505,368.22/85,377.02
  6. Step 6: Final answer
    x = 39,313.92

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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.