Home / 65,588.16-90,511.36-35,780.16

Finding the Fourth Proportional to 65,588.16, 90,511.36 and 35,780.16

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Solution

The fourth proportional to 65,588.16, 90,511.36 and 35,780.16 is: 49,376.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,588.16 : 90,511.36 = 35,780.16 : x
  2. Step 2: Convert to fraction form
    65,588.16/90,511.36 = 35,780.16/x
  3. Step 3: Cross multiply
    65,588.16x = 90,511.36 × 35,780.16
  4. Step 4: Simplify right side
    65,588.16x = 3,238,510,942.62
  5. Step 5: Solve for x
    x = 3,238,510,942.62/65,588.16
  6. Step 6: Final answer
    x = 49,376.46

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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.