Home / 80,641.40-111,299.67-46,645.16

Finding the Fourth Proportional to 80,641.40, 111,299.67 and 46,645.16

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Solution

The fourth proportional to 80,641.40, 111,299.67 and 46,645.16 is: 64,378.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,641.40 : 111,299.67 = 46,645.16 : x
  2. Step 2: Convert to fraction form
    80,641.40/111,299.67 = 46,645.16/x
  3. Step 3: Cross multiply
    80,641.40x = 111,299.67 × 46,645.16
  4. Step 4: Simplify right side
    80,641.40x = 5,191,590,915.10
  5. Step 5: Solve for x
    x = 5,191,590,915.10/80,641.40
  6. Step 6: Final answer
    x = 64,378.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.