Home / 85,465.95-128,199.02-22,286.02

Finding the Fourth Proportional to 85,465.95, 128,199.02 and 22,286.02

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Solution

The fourth proportional to 85,465.95, 128,199.02 and 22,286.02 is: 33,429.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,465.95 : 128,199.02 = 22,286.02 : x
  2. Step 2: Convert to fraction form
    85,465.95/128,199.02 = 22,286.02/x
  3. Step 3: Cross multiply
    85,465.95x = 128,199.02 × 22,286.02
  4. Step 4: Simplify right side
    85,465.95x = 2,857,045,857.50
  5. Step 5: Solve for x
    x = 2,857,045,857.50/85,465.95
  6. Step 6: Final answer
    x = 33,429.05

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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.