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Finding the Fourth Proportional to 85,600.33, 128,330.90 and 35,717.58

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Solution

The fourth proportional to 85,600.33, 128,330.90 and 35,717.58 is: 53,547.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,600.33 : 128,330.90 = 35,717.58 : x
  2. Step 2: Convert to fraction form
    85,600.33/128,330.90 = 35,717.58/x
  3. Step 3: Cross multiply
    85,600.33x = 128,330.90 × 35,717.58
  4. Step 4: Simplify right side
    85,600.33x = 4,583,669,187.22
  5. Step 5: Solve for x
    x = 4,583,669,187.22/85,600.33
  6. Step 6: Final answer
    x = 53,547.33

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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.