Home / 85,116.92-127,435.32-45,045.14

Finding the Fourth Proportional to 85,116.92, 127,435.32 and 45,045.14

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Solution

The fourth proportional to 85,116.92, 127,435.32 and 45,045.14 is: 67,440.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,116.92 : 127,435.32 = 45,045.14 : x
  2. Step 2: Convert to fraction form
    85,116.92/127,435.32 = 45,045.14/x
  3. Step 3: Cross multiply
    85,116.92x = 127,435.32 × 45,045.14
  4. Step 4: Simplify right side
    85,116.92x = 5,740,341,830.34
  5. Step 5: Solve for x
    x = 5,740,341,830.34/85,116.92
  6. Step 6: Final answer
    x = 67,440.67

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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.