Home / 85,598.68-128,281.38-41,222.20

Finding the Fourth Proportional to 85,598.68, 128,281.38 and 41,222.20

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Solution

The fourth proportional to 85,598.68, 128,281.38 and 41,222.20 is: 61,777.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,598.68 : 128,281.38 = 41,222.20 : x
  2. Step 2: Convert to fraction form
    85,598.68/128,281.38 = 41,222.20/x
  3. Step 3: Cross multiply
    85,598.68x = 128,281.38 × 41,222.20
  4. Step 4: Simplify right side
    85,598.68x = 5,288,040,702.64
  5. Step 5: Solve for x
    x = 5,288,040,702.64/85,598.68
  6. Step 6: Final answer
    x = 61,777.13

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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.