Home / 85,853.40-128,807.10-41,481.60

Finding the Fourth Proportional to 85,853.40, 128,807.10 and 41,481.60

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Solution

The fourth proportional to 85,853.40, 128,807.10 and 41,481.60 is: 62,235.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,853.40 : 128,807.10 = 41,481.60 : x
  2. Step 2: Convert to fraction form
    85,853.40/128,807.10 = 41,481.60/x
  3. Step 3: Cross multiply
    85,853.40x = 128,807.10 × 41,481.60
  4. Step 4: Simplify right side
    85,853.40x = 5,343,124,599.36
  5. Step 5: Solve for x
    x = 5,343,124,599.36/85,853.40
  6. Step 6: Final answer
    x = 62,235.45

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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.