Home / 90,566.04-135,829.62-56,815.80

Finding the Fourth Proportional to 90,566.04, 135,829.62 and 56,815.80

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Solution

The fourth proportional to 90,566.04, 135,829.62 and 56,815.80 is: 85,211.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,566.04 : 135,829.62 = 56,815.80 : x
  2. Step 2: Convert to fraction form
    90,566.04/135,829.62 = 56,815.80/x
  3. Step 3: Cross multiply
    90,566.04x = 135,829.62 × 56,815.80
  4. Step 4: Simplify right side
    90,566.04x = 7,717,268,524.00
  5. Step 5: Solve for x
    x = 7,717,268,524.00/90,566.04
  6. Step 6: Final answer
    x = 85,211.50

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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.