Home / 85,314.14-127,916.39-35,428.67

Finding the Fourth Proportional to 85,314.14, 127,916.39 and 35,428.67

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Solution

The fourth proportional to 85,314.14, 127,916.39 and 35,428.67 is: 53,120.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,314.14 : 127,916.39 = 35,428.67 : x
  2. Step 2: Convert to fraction form
    85,314.14/127,916.39 = 35,428.67/x
  3. Step 3: Cross multiply
    85,314.14x = 127,916.39 × 35,428.67
  4. Step 4: Simplify right side
    85,314.14x = 4,531,907,017.89
  5. Step 5: Solve for x
    x = 4,531,907,017.89/85,314.14
  6. Step 6: Final answer
    x = 53,120.24

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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.