Home / 90,568.04-135,832.62-56,817.80

Finding the Fourth Proportional to 90,568.04, 135,832.62 and 56,817.80

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Solution

The fourth proportional to 90,568.04, 135,832.62 and 56,817.80 is: 85,214.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,568.04 : 135,832.62 = 56,817.80 : x
  2. Step 2: Convert to fraction form
    90,568.04/135,832.62 = 56,817.80/x
  3. Step 3: Cross multiply
    90,568.04x = 135,832.62 × 56,817.80
  4. Step 4: Simplify right side
    90,568.04x = 7,717,710,636.64
  5. Step 5: Solve for x
    x = 7,717,710,636.64/90,568.04
  6. Step 6: Final answer
    x = 85,214.50

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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.